A wild aegis with Underground as his favored terrain chooses from the following wild marks.
Dust Cloud: The wild aegis can create a cloud of rock dust 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.
Pebble Spray: The wild aegis creates a ray of rock-hard earth and stone 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 bludgeoning damage equal to 2d6 + 1/2 the wild aegis’s level.
Rock Slide: The wild aegis can create a shower of stalactites, loose rocks, and other stone debris to fall in the target’s square. The target must make a Reflex save or take 1d4points of damage and become pinned for 1 round per wild aegis level.
Shatter Stone: The wild aegis can create difficult terrain in the form of a broken earth, rubble, crags. The space he occupies and all of the squares adjacent to him become difficult terrain for 1 round per wild aegis level.
Stonecunning: The wild aegis receives a +2 bonus on Perception checks to potentially notice unusual stonework, such as traps and hidden doors located in stone walls or floors. They receive a check to notice such features whenever they pass within 10 feet of them, whether or not they are actively looking.
Tremor: The wild aegis’s can create a localized shock wave in the target’s square that travels along the ground, toppling creatures and loose objects. The space he occupies and all of the squares adjacent to him are subject to this effect. Creatures in these squares, except the wild aegis, must make a Reflex save or be knocked prone and take 1d4 points of nonlethal damage. This ability is based on the Stomp psychokinetic ability. (Psionics Unleashed by Dreamscarred Press, Copyright 2010)
A wild aegis with Underground as his favored terrain can use meld into stone at will as a spell-like ability.