A wild aegis with Water as his favored terrain chooses from the following wild marks.
Hydro Cannon: The wild aegis can create a wave of water to strike the target’s square. The target must make a successful Reflex save or be subject to a bull rush. At 12th level, the DC to save against this bull rush effect increases by +2.
Impeding Mist: The wild aegis can create difficult terrain in the form of a semi-solid misty vapor. The space he occupies and all of the squares adjacent to him become difficult terrain for 1 round per wild aegis level. Also, the vapor obscures all sight, including darkvision, beyond 5 feet. This mist does not function under water.
Poison Sting: The wild aegis’s touch can make the target ill. The wild aegis must succeed on a melee touch attack. If successful, the target must make a successful Fortitude save or become sickened for 1 round per level of the wild aegis.
Rainstorm: The wild aegis can create a rainstorm in the target’s square. The target must make a successful Fortitude save or become blinded for 1 round per level of the wild aegis.
Razor Shell: The wild aegis creates a ray of razor-sharp shells from his hand. The wild aegis must succeed on a ranged touch attack with the ray to deal damage to the target. The ray deals slashing damage equal to 2d6 + 1/2 the wild aegis’s level.
Waverunner: The wild aegis gains a Swim speed equal to his land speed and may remain buoyant at will while in water.
A wild aegis with Water as his favored terrain gains DR/slashing and piercing equal to 1/2 his level. This damage reduction also applies against spells and spell-like abilities that inflict damage by grappling or crushing (e.g., black tentacles, crushing hand). He never takes pressure damage from deep water.
A wild aegis with Water as his favored terrain gains the amphibious special quality, his Swim speed increases to that of twice his land speed, and any ally that is within 30 feet of him is under the constant effect of a water breathing spell. He is also under the continuous effects of the endure elements spell while within his favored terrain.