Swallow Whole and Planar Pounce

Planar Pounce: The [creature name] is able to easily traverse between the planes both wholly and partially. It often exploits this to hunt for prey, traversing the planes only enough to see if there is any prey, while it lays in wait. Upon seeing the prey it may lunge partially or fully into the plane as a move action. If it successfully grapples (swallows) its target after only partially entering the plane, it may retreat back into the other plane as a swift action taking its prey with it.

Owrtho