Control tides in coastal regions up to (Arcana × 15) kilometers from your position for (Hydromancer level) days. Manipulate water levels up to 1 meter per minute to reveal underwater locations or extend high tides inland. Ship navigation checks in the area have advantage or disadvantage (your choice). Requires a check every (Hydromancer level) hours to maintain abnormal patterns.

In combat: Once per month · Out of combat: Once per month