Zarfonax

Just when you think you have one cornered, the Zarfonax blinks out of existence, only to reappear a short distance away to pummel you with brutal blasts of magically charged water. Faelon’s scholars speculate on the nature of the creature’s home habitat, but there can be no doubt of its liquid nature. When a Venkhai sends his minions through a gate to a coastal or lake-covered objective, you can be sure a Zarfonax is along for the ride.
https://www.dgsgames.com/zarfonax/