Tidal Wave 3rd-level conjuration Casting Time: 1 action Range: 120 feet Components: V, S, M (a drop of water) Duration: Instantaneous You conjure up a wave of water that crashes down on an area. They generally have low amplitude but a high (a few hundred km long) wavelength. The spell requires a saving throw to avoid, which means it will deal damage regardless. The berries lose their potency if they have not been consumed within 24 hours of the. Every class proficient with martial weapons is also proficient with simple weapons, so there would be no mechanical advantage to using a trident over a spear (unless in some unforeseen circumstance you needed the extra 1lb). On a failure, a creature takes 4d8 bludgeoning damage and is knocked prone. Swain. The tsunami starts at any point you select within range of the spell and then moves at a speed of 60 feet in any direction chosen by you. Unfortunately, for the most part it doesn't actually matter. ago. This is like if Randy Feltface was observing the goings on at a DND table! 🤣mad props to this DM. /level) Effect 10-ft. This spell creates an undead servant. For example, tidal Wave 5e can wash away a whole nest of Fire Snakes about effortlessly. Compendium - Sources->Journeys through the Radiant Citadel. On a successful save, the creature takes half as much damage and isn’t pushed. Any Huge or smaller vehicles in the wave's path are carried with it to the other side. There are two possible uses for the spell, granting either immediate or long-term benefits. 在區域內的每個生物均必須. The area can be up to 30 feet long, up to 10 feet wide, and up to 10 feet tall. Though tritons themselves, they often move beneath the depths in the shapes of the beasts surrounding them. Elemental Guardian – P18. You teleport yourself to an unoccupied space you can see within range. Well, the wave itself says it only affects creatures, so it seems like basically the wave crests over your target area and crashes down. The tsunami deals 1d6 points of bludgeoning. The section of the rules on targets makes clear that targeted. ago. Each creature in that area must make a Dexterity saving throw. Tidal Wave - Cyril puts his hands to ground and sends water forward in a line to then emerge as a giant wave to hit. Part Four: Bandits 1 and 4 Become Prone. Tsunamis generally go unnoticed at sea but. The description lists various uses such as creating harmless sensory effects, cleaning or soiling an object, chilling or warming an area, or creating small markings. Wave is a sentient weapon of neutral alignment, with an Intelligence of 14, a Wisdom of 10, and a Charisma of 18. Abilities. While six of the game's core classes are spellcasters that are based around the use of magic, nearly each of the game's martial classes are. Goodberry. Creatures that have an Intelligence score of 2 or lower are unaffected. I ruled, that it had no special effect (aside from instantly killing. D&D Sage Advice · @JeremyECrawford Would a fire elemental that failed it's save vs Tidal wave just die due to the mass amount of water? — Dongaloid (@Dongaloid56) April 1, 2016 As DM, I don't imagine all the water bombards the fire elemental, but it'd be hurt by moving through the water. A tidal wave spell has a total area of 3000 cubic feet of water. An explosion of water rushes out from the point you designate, bowling over your enemies. Lesser Restoration also says it can cure "a disease", not "a disease requiring a spell of 2nd level or lower" - thus, Potion of Vitality, in being neither heal nor a disease-curing spell of 6th level or higher, cannot cure it. Water Portal The Black Geode – G1. Each creature in this area must be subject to agile exemption verification. Claw. You conjure up a wave of water that crashes down on an area within range. There are quite a few water spells in the Elemental Evil Player's Companion (free, you can get the PDF from the WOTC website). The wall lasts for the duration. Over the surface of open water, the wave travels at a speed of 60 feet per round—on land or. In either case, make a ranged attack against a target creature, treating the holy water as an improvised weapon. . Part Three: Choosing Necrotic Damage for Destructive Wave. You can shape the wall in any way you choose so long as it makes one continuous path along the ground. ago. Unlike most other spells, the Tsunami 'wall' moves 50ft away from you each round, no questions. Explorer. The area can be up to 30 feet long, up to 10 feet wide, and up to 10 feet tall. Freedom of the Waves is a conjuration spell from Tal'Dorei Campaign Setting Reborn. The final wave should take almost everything the party has to stop them. Tempest Domain Spells. When the wall appears, all other creatures within its area must each make a DC: 24 Strength saving throw. Go to DnD r/DnD. DnD’s prone condition can be ended by using half of your movement speed. For every 5 ft. Range: 120 feet. 6) Although cost of construction of tidal power is high but maintenance costs are relatively low. Upon completion of the spell, the tidal wave forms and moves from the starting point you designate in the direction you specify at a speed of 150 feet per round for the duration of the spell, or until it strikes land. Part Two: Bandits 1 and 4 fail, but Bandits 2 and 3 Succeed. If spells such as Gust of Wind only extinguished non-magical fire, it would say so in its description. E. In combat, the cantrip will be all but useless, but outside of combat these functions are invaluable. Tsunami is a series of water waves caused by the displacement of large bodies of water. When the wall appears, each creature within its area must make a Strength saving throw. In case 3: You do regain tides of Chaos. So my question is, can you change the shape of the area as to not hit your allies? Fire Elementals have: Water Susceptibility. The material component is a strand of wet hair. The spell tidal wave says: You conjure up a wave of water that crashes down on an area within range. Fireball does an average of 28 damage up front on a failed save at 3rd level, or 31. The pushback lasts 1 minute or until your concentration is broken. Eye of Anguish – P15. Hit: 23 (3d8 + 10) piercing damage. high and 500 ft. With this knowledge driving his actions, he prepares the full incantation for the most powerful spell he’s learned over the years of travel. Level: 3; Casting time: 1 Action; Range: 120 feet; Components: V, S, M (a drop of water); Duration: Instantaneous; In the event that a tidal wave drives up onto the shore, it bargains 6d10. Ability Score Increase. The rules. If you choose a tsunami, you create a 30-foot-high tidal wave of earth or water hurtling across the landscape that lasts for 1 round per level. Tidal Wave ( pointer) 3rd-level conjuration Casting Time: 1 action Range: 120 feet Components: V, S, M Duration: Instantaneous Casters: Druid , Sorcerer , Wizard. You create intense pressure, unleash it in a 30-foot cone, and decide whether the pressure pulls or pushes creatures and objects. Melee Weapon Attack: +17 to hit, reach 5 ft. This wave can destroy ships and harbors in its path. Each creature in that area must make a Dexterity saving throw. Comments. If it fails the check, it can’t move. Dnd 5e Homebrew. Dnd 5e Hobgoblin is the most "Anime protagonist" thing i have ever seen and i. On a successful save, a creature is ejected. You take control of the weather within 5 miles of you for the duration. For example, if arcane lock is cast with a 9th level spell slot, a 9th level knock will be needed to be cast in order to unlock it, and if cast at a lower level, an ability check using your spellcasting ability would need to be made. Eragon3942. On a successful save, a. D D Items. com may use the trademarks and other intellectual property of Wizards of the Coast LLC, which is permitted under Wizards' Fan Site Policy. Tidal wave 🌊 4D8 damage & they have to do a save or become knocked prone. Until the spell ends, you control any freestanding water inside an area you choose that is a cube up to 100 feet on a side. Most spells require the chanting of mystic words. DESCRIPTION. You conjure up a wave of water that crashes down on an area within range. Step 3. You’ll think of a water wave that falls in an area within range. Languages Aquan. Rogendo • DM • 2 yr. Note: Apparently the free spell list on DND Beyond is piracy now per the mods autobot so I had to not link. The Hungry – P14. At the end of each of its turns, the target can make a Constitution saving throw. A subreddit dedicated to the various iterations of Dungeons & Dragons, from its First Edition roots to its One D&D future. (Plane Shift: Zendikar, page 13) Your merfolk character has a number of traits in common with other members of this race. Cleric Level. Water elementals deal bludgeoning damage in D&D. The sphere can hover in the air, but no more than 10 feet off the ground. When you cast the spell you must choose the wave’s type, either a tsunami or a swell. Definitely changes a lot about the battlefield, and since a lot of enemies in DnD are just running bags of meat, it’s really good in the right situation. Relevant Page Number. 161, can fire a 30 foot long, 1 foot wide stream of water that can knock a target prone. While submerged, the leviathan magically creates a wall of water centered on itself. You gain a +3 bonus to attack and damage rolls made with this magic weapon. Price (per Sane Prices) 400 gp. Comparing some of the 3rd level Sorcerer damage spells, Fireball and Lightning Bolt seem to deal a ton of damage (8d6). You conjure up a wave of water that crashes down on an area within range. " The duration for Wall of Fire is set as "Concentration, up to one minute". As an action on your turn, you can repeat the same effect or choose a different one. Part Water. You can also use your action to temporarily halt the effect or to. All Campaign info (maps, characters, session logs) is being stored on a discord server here: D&D playlist to keep up with th. A line of strong wind. If it takes the full brunt that's a 10x10x10 cube of water due to being a large creature which makes it 7480 gallons of water. Listed on Apr 26, 2023Mermaids are strong, beautiful sirens of the seas, acclimated to the oceans and survival underwater. When the wall appears, each creature within its area must make a Dexterity saving throw. Best. On a success, the spell ends. The effect lasts for the spell’s duration, unless you use your action on a later turn to switch to a different effect. Spell Description. An amphidromic point, also called a tidal node, is a geographical location which has zero tidal amplitude for one. An affected target’s speed is halved, it takes a -2 penalty to AC and Dexterity saving throws, and it can’t use reactions. It is the easiest to make DM specials at low levels. On a failed save, a creature takes 10d4 acid damage and 5d4 acid damage at the end of its next turn. Any Huge or smaller vehicles struck by the wave have a 25 percent chance of capsizing. I think most people would probably agree that Tidal Wave counts as running water, and there's no definition of running water in D&D 5e to prove them wrong. Most popular aasimar 3D Models. \$\begingroup\$ Note that completely asides from what the rules say, this is also very varying in fiction, with some vampires fearing water to the extent that they can’t enter even a boat (despite the most famous one entering england via boat), in other stories they just can’t cross running water (so it acts more like a defensive barrier) and in yet others all forms of water are highly. If a creature fails the save, they are also knocked prone. Ships from Germany. Maelstrom. Ok now I get it I was thinking more on the physical attack side. The area is heavily obscured, and exposed flames in the area are doused. Roll20 Companion App Free Mobile App For Players. Tidal Wave. You conjure up a wave of water that crashes down on an area within range. Finally, you gain resistance to cold damage, and you are unaffected by the drawbacks caused by a deep underwater environment. Available Skins. A characteristic of Tidal Wave cubensis is its sillyness :) May produce differnent varieties of the . Gust of Wind makes no distinction between magical and non-magical fire so it should work on both. You conjure up a wave of water that crashes down on an area within range. , one target. Tidal Wave - Rules & Game Mechanics - Dungeons & Dragons Discussion - D&D Beyond Forums - D&D Beyond Tidal Wave #1 Jun 29, 2020 Morallyneutralbovine. A Vampire, MM pg. The whirlwind is a 10-foot-radius, 30-foot-high cylinder centered on that point. You conjure up a wave of water that crashes down on an area within range. As far as I can tell, nothing stops someone from casting these spells underwater (assuming they are able to cast spells underwater, of course). Tidal Wave 5e. We would like to show you a description here but the site won’t allow us. Tidal waves are waves created by the gravitational forces of the sun or moon, and cause changes in the level of water bodies. This water takes the form of a tidal wave, a whirlpool, a waterspout, or another form of your choice. Each creature in that area must make a Dexterity saving throw. " Now, obviously, that lets you make the wave smaller than those dimensions, but could you also change the shape of the wave, say, to snake around allies while hitting enemies, as long as the wave fits in the 30×10. Tidal Wave is a spell for 5th edition published in Xanathar's Guide to Everything. 5e: Holy Tidal Wave? Hello, I am quite a fresh DM and my party was at a graveyard dealing with spectres, willow wisps and Banshees. add to list. Most spells require the chanting of mystic words. 1. The caster unleashes a burst of energy from where they stand dealing thunder and either necrotic or radiant damage to the creatures around them. 1st. Tsunamis and tidal waves refer to sea waves which are significantly different, although many people confuse the two. Spell Lists. Until the spell ends, freezing rain and sleet fall in a 20-foot-tall cylinder with a 40-foot radius centered on a point you choose within range. 5th-level transmutation. A subreddit dedicated to the various iterations of Dungeons & Dragons, from its First Edition roots to its One D&D future. So for a Wizard, their primary casting statistic bonus is based on their Intelligence score. [OC] Tidal Wave Arrow. Upon completion of the spell, the tidal wave forms and moves from the starting point you designate in the direction you specify at a speed of 150 feet per round for the duration of the spell, or until it strikes land. Expect to spend a lot of time as a cat or elk with magical appendages. Tidal Wave, 3rd level Conjuration (Druid, Sorcerer, Wizard). In the description for Tidal Wave, it mentions the area for the spell can be up to 30 feet long, up to 10 feet wide, and up to 10 feet tall. Hey guys! So tonight at the table I was surrounded on three sides by zeds, with no way out, when I remembered I had a 1st level spell slot and didn't…Asking the creature to stab itself, throw itself onto a spear, immolate itself, or do some other obviously harmful act ends the spell. " Ergo, is it possible to cast Water Walk on oneself, and then cast the flood feature of Control Water and ride a massive wave across the ocean, quite literally turning the. Apr 6, 2020. My players don't know…Poseidon casts tidal wave, wall of water, or watery sphere. Examples of these are: Tidal wave, synaptic static, investiture of fire/ice/stone, mental prison, sunbeam, finger of death, firestorm, prismatic spray, whirlwind, abi-dalzim’s horrid wilting, incendiary cloud, sunburst are examples of these spells. It can also speak with aquatic animals as if using a speak with animals. Question about the tidal wave spell. . Rammus. The area can be up to 30 feet long, up to 10 feet wide, and up to 10 feet tall. Am I correct in assuming that the spell description "You conjure up a wave of water that crashes down on an area within range. The ritual takes 1 hour to perform, uses 25 gp worth of powdered silver, and requires the. Trident. Based on what I've read, vampires can be killed in the following ways: They are instantly destroyed when dropped to 0 hp while in running water or sunlight (Can't auto-transform to mist form). Tidal wave 5e. wide. Moving to a place where you don’t have a clear path to the sky ends the spell early. If you cast this spell using 1 action, choose a point within range. ago. Compendium - Sources->Princes of the Apocalypse. The creatures appear in any part of the area affected by. The wall lasts for the duration. Tsunami. Part Four: Bandits 1 and 4 Become Prone. Poor thing gets instakilled by Tidal Wave due to its Water Susceptibility cause even a 5x5x5 corner of tidal wave hitting it contains 935 gallons of water thus that's an instant 935 cold damage. When you cast the spell you must choose the wave’s type, either a tsunami or a swell. ago • Edited 2 yr. Bards often have very high Charisma attributes by default, so the advantage to their roll feels a little unnecessary. The moonlight deals radiant damage as we know from. RAW, wouldn't affect a ship. But imo Tidal Wave is definitely up there with those two. You conjure up a wave of water that crashes down on an area within range. [1] The amphidromic points are the dark blue areas where the lines come together. If the ocean is choppy, or the ship is making large waves, then you could rule that the fire elemental will be splashed with a wave, even if its essentially floating above the surface, supported by the steam that it's creating. If the target is a fiend or undead, it takes 2d6 radiant damage. October 10, 2019 by admin. Range: Self (5-mile radius) Components: V, S, M (burning incense and bits of earth and wood mixed in water) Duration: Concentration, Up to 8 hours. They can be seen gathering at the surface of the water in the dead of night, reading the stars for signs of times to come. The area can be up to 30 feet long, up to 10 feet wide, and up to 10 feet tall. Tidal Wave. 7) Tidal Energy doesn’t require any kind of fuel to run. You conjure a deluge of seawater in a 15-foot-radius, 10-foot-tall cylinder centered on a point within range. Range: 60 feet. Since this was first published in November 2014 the Dungeon Master Guide was released and provides lists of Monsters by Environment in Appendix B, but the lists are basic. Compendium - Sources->Storm Lord’s Wrath. the elemental moves in water, or for every gallon of water splashed on it, it takes 1 cold damage. Classes: Cleric, Druid, Wizard. A wall of strong wind rises from the ground at a point you choose within range. Your Charisma score increases by 2, and your Wisdom score increases by 1. However, hitting more than two enemies with a line effect (even one that’s wide like Tidal Wave) can be very difficult, so it’s rare that you’ll hit more than two targets with this. Im sure someone can give you a better answer though. Dnd Wiki. Crudely carved in Undercommon above a hole is - "drop coins for gifts". It moves precisely 50ft and only 50ft. An elemental force that resembles a dust devil appears in the cube and lasts for the spell’s duration. Proficiency with a trident allows you to add your proficiency bonus to the attack roll for any attack you make with it. The Player’s Handbook is the essential core reference for every Dungeons & Dragons roleplayer. Also, Tidal Wave, Tsunami, and Maelstrom are all EXCELLENT spells. The M2 tidal constituent, the amplitude indicated by color. Saving Throw: None. When a creature enters the spell’s. The target must make a Wisdom saving throw. Any surfer who hopes to surf another. This features a minor hydromancy cantrip Shape Water, a 3rd-level spell Wall of Water, and also a 4th-level spell Watery Sphere . It’s time to don your pointy hat, ponder your Arcane Focus,. A few rats run past in fear, slowly becoming a torrent fleeing something. An amphidromic point, also called a tidal node, is a geographical location which has zero tidal amplitude for one. You can also combine the four lights into one glowing vaguely humanoid form of Medium size. You can make the wall up to 300 feet long, 300 feet high, and 50 feet thick. The loud crashing sounds fill the target with awful pain. Tags Free 3D file Aasimar・3D print design to download・. Each creature in this area must be subject to agile exemption verification. Feral Tiefling - Great Old One Warlock Favourite Spell: Flock of Familiars. In DND, a leviathan is a massive, sea-dwelling monster and elder water elemental. The water then spreads. 區域的長度至多為30英尺，寬度至多為10英尺，高度至多為10英尺。. The target must succeed on a dc 14 constitution saving. Tidal Wave 3rd-level conjuration Casting Time: 1 action Range: 120 feet Components: V, S, M Duration: Instantaneous Casters: Druid, Sorcerer, Wizard. Tidal Surge. I agree if it was. Like essentially being able to create any tools you want any time, or combining any of the spells previously named with water walk or ice platforms you create to get fly-like. A creature that moves out of the area falls to the ground. The wall of water can rush forward up to 120 feet and any creature caught in the wave must succeed on a DC 15 Dexterity saving. #1. 5e: Holy Tidal Wave? Hello, I am quite a fresh DM and my party was at a graveyard dealing with spectres, willow wisps and Banshees. In this article, you’ll learn everything you. Therefore and if friction can be neglected, the wave propagation speed follows from (see Sect. When the save fails, the creature is hit by a short blow of 4d8 and is. The water level remains elevated until the spell ends or you choose a different effect. Choose a pile of bones or a corpse of a Medium or Small humanoid within range. A tidal wave is a shallow wave which is caused by the interactions between the gravitational forces of the earth, the moon, and the sun. r/DnD • The reason why you enjoy Baldur's Gate 3 combat is, for the most part, ENCOUNTER DESIGN. A druid can cast a concentration spell like flame sphere, wild shape and keep the spell going; so even a moon druid can do some CC. We would like to show you a description here but the site won’t allow us. About. Daniel Danielson. Each creature in that area must make a Dexterity saving throw. While swallowed, the creature is blinded. Choose When Waves Occur. Each creature in that area must make a Tidal Wave Learn how to cast Tidal Wave, a 3rd-level conjuration spell that creates a wave of water that extinguishes unprotected flames and knocks down creatures in an area. The tidal wave spell description says: The water then spreads out across the ground [. Range: Long (400 ft. Components: V S M (a drop of water) Duration: Instantaneous. Facing the wave, is that 30 ft. 10 ft tall. Fog Cloud – 4. Duration: Yes Up to 10 minutes. The water is black and terribly chilling, and its touch causes a sense of fear in those affected by it. Summon undead is notably the only Necromancy spell in the Summon Creature Spells category. While running PoA my players came across a fire elemental which my Druid immediately responded to by casting Tidal Wave, and since I didn't fully read the rules on Fire Elemental then did it on the second round. Fire is one the most prevailing elements in DnD, so it comes into manipulation quite a draw . Thunderous Smite. Regardless of real. ) A tsunami is an ocean wave triggered by large earthquakes that. Get all the rules needed to create, level up and start adventuring with your D&D characters with helpful tooltips. You can make the wall up to 60 feet long, 20 feet high, and 1 foot thick, or a ringed wall up to 20 feet in diameter, 20 feet high, and 1 foot thick. For example, a transmutation wizard would be cool with wood carvers tools, turning metal into wood, caving it into a nice statue, then letting it change back and selling it. Each creature in that area must make a Dexterity saving throw. long as in, left to right? it's 30 feet from base of wave to end point of where it crashes down, if I'm reading it right #WOTCstaff — (((Mike Mearls))) (@mikemearls) August 18, 2016 @ZaikyuSo, on a grid, the tidal wave would hit all. While submerged, the leviathan magically creates a wall of water centered on itself. Wave is a sentient weapon of neutral alignment, with an Intelligence of 14, a Wisdom of 10, and a Charisma of 18. + 40 ft. Dexterity saving throw. You create a wall of fire on a solid surface within range. It can be found on page 22 of the Elemental Evil Player's Companion and page 168 of Xanathar's Guide to Everything . Does this suggest that…Crushing Wave Outpost – P10. A user asks how the Leviathan's Tidal Wave action affects objects in D&D 5e, a CR20 siege monster that can create a wall of water and deal damage to them. Tidal Wave Search Results Returning 31 results for 'Tidal Wave'. Choose one creature that you can see within range to make a Constitution saving throw. Ice Knife – 3. Use spell - Cast firestorm, tidal wave, etc to lower the enemy army stats. After a few arcana checks, and a casting of Identify, they have figured out that it will wreak havoc on a dwarven settlement within 2 days. Its companion, Surge, was a lawful neutral trident dedicated to another deity, an eel-like demigod called Anguileusis . From Plane Shift: Zendikar, page 13; and Plane Shift: Ixalan, page 12. Spell Lists. Just put a +1 into whatever you want the monster to be good at. No one D&D Wizard casts spells in the same way, so it’s important that there are plenty of DnD Wizard spells for players to choose from. More details on the Scroll of Tidal Wave can be found at Tidal Wave Spell Details Detect Magic Aura. In DND, a leviathan is a massive, sea-dwelling monster and elder water elemental. Tidal waves usually move between 10 and 20 miles per hour. Each creature in that area. Built For Success gives you a d4 to add to most rolls, and resistance to poison and advantage against being paralyzed and poisoned are good defensive buffs. In terms of damage and scope, it was one of the most powerful spells known in the Realms since Mystra's Ban in the Year of Sundered Webs, −339 DR. 1 There would be a reason to use a spear (simple weapon) and not a trident (martial weapon), but not the other way. The area can be up to 30 feet long, up to 10 feet wide, and up to 10 feet tall. If you choose "when Tidal Wave is cast", you would cast your spell after the trigger happened and, since Tidal Wave is instantaneous, the spell effect would already have resulted and the water vanished. Learn how to cast Tidal Wave, a 3rd-level conjuration spell that creates a wave of water that extinguishes unprotected flames and knocks down creatures in an area. For example, tidal Wave 5e can wash away a whole nest of Fire Snakes about effortlessly. So Tidal Wave does count as running water. If you’ve been waiting to play a necromancer until you could summon undead pets into battle, that day has finally come. You conjure up a wave of water that crashes down on an area within range. If the saving throw is successful, the. Until the spell ends, the aura moves with you, centered on you. Druid, Wizard. Components: V S M (Several seeds of any moonseed plant and a piece of opalescent feldspar) A silvery beam of pale light shines down in a 5-foot-radius, 40-foot-high cylinder centered on a point within range. As an action on your turn, you can repeat the same effect or choose a different one. You cannot imagine your online dnd game session to be fascinating if you don’t use the spells. Thunder Step. You can make the wall up to 60 feet long, 20 feet high, and 1 foot thick, or a ringed wall up to 20 feet in diameter, 20 feet high, and 1 foot. What follows is the set of rules I believe should be followed in this instance; and what is intended by the spell, or what we call RAI. Spell Resistance: No. On a failure, a creature takes 4d8 bludgeoning damage and is knocked prone. Critical Inspirations. Multiattack. Each creature in the cylinder must make a Dexterity saving throw. 法術成分： 言語，姿勢，材料（一滴水）. It must succeed on a Wisdom saving throw or be charmed by you for the duration. Earth Tremor – 3. Does this mean it can target 1 square only and then put out fires in an area 30 ft from there?Go to DnD r/DnD • by. And that means your party can keep going longer without needing short rests and expended hit dice. Gust of Wind, Shatter. Yes. Vitriolic Sphere does 37. Well, the wave itself says it only affects creatures, so it seems like basically the wave crests over your target area and crashes down. The maximum length of the area is 30 feet, the maximum width is 10 feet, and the maximum height is 10 feet. The area can be up to 30 feet long, up to 10 feet wide, and up to 10 feet tall.