The power in query is mechanically just like the Tsunami spell, which solely impacts creatures.
Nonetheless, the Leviathan is a siege monster, and its description states:
Siege Monster. The leviathan offers double harm to things and buildings (included in Tidal Wave).
Tidal Wave (Recharge 6). Whereas submerged, the leviathan mag- ically creates a wall of water centered on itself. The wall is up 250 toes lengthy, as much as 250 toes excessive, and as much as 50 toes thick.
When the wall seems, all different creatures inside its space should every make a DC 24 Energy saving throw. A creature takes 33 (6d10) bludgeoning harm on failed save, or half as a lot harm on a profitable one. At the beginning ofeach of the leviathan’s turns after the wall seems, the wall , a protracted with another creatures in it, strikes 50 toes away from the leviathan. Any Large or smaller creature contained in the wall or whose area the wall enters when it strikes should succeed on a DC 24 Energy saving throw or take 27 (5d10) bludgeoning harm. A creature takes this harm
not more than as soon as on a flip. On the finish ofeach flip the wall strikes, the wall’s top is decreased by 50 toes, and the harm creatures take from the wall on subsequent rounds is decreased by 1d10. When the wall reaches zero toes in top, the impact ends. A creature caught within the wall can transfer by swimming. Be- trigger ofthe drive ofthe wave, although, the creature should make a profitable DC 24 Energy (Athletics) verify to swim in any respect throughout that flip.
1. Does the wave transfer by means of partitions? What occurs when the tidal wave encounters a wall, or any object whose dimension is important in comparison with the wave? Does it clip by means of the article, like unhealthy Roblox physics? Presumably killing everybody inside? I’ve a proposition: the wave damages the article, and if the harm is sufficient to collapse the wall, then it strikes by means of the article. Maybe if it’s a ship, then you may describe it because the ship being capsized. Nonetheless, if the wave isn’t sufficient to destroy the article, then the wave curves round it. Overlook conservation of mass, if the article is larger than the wave, then maybe it may ghost by means of it (transfer by means of it however with out current inside it) and reappear behind it, if the article is sufficiently small.
2. What occurs if a creature, caught by the wave, hits an object ? Let’s say that you just hit an object sufficiently big to not be destroyed by the harm, what occurs then? Absolutely you wouldn’t section by means of the article to proceed following the wave, nor would you curve round it to take action (it may not at all times even be attainable).
3. How a lot harm does Tidal Wave do to things? The foundations for siege monster would point out that the harm (6d10, 5d10…) is doubled for an object. So 2x(6d10) …?
That is a couple of CR20 monster whose description states that it destroys coastal settlements. So absolutely it could actually harm buildings, however in-game, how does it work?
EDIT1: Maybe this could assist:
Water Type. The leviathan can enter a hostile creature’s area and cease there. It will possibly transfer by means of an area as slender as 1 inch large with out squeezing.
Absolutely a wave is extra so water than a monster? So maybe the wave also can enter a closed area, as long as there’s no less than 1 inch of area? Does this make sense?