When you change shape, you become a resilient version of your new form

Prerequisites: Wild shape class ability or lapith race.

Benefit: When you take on a new form with the wild shape class ability or the formshift lapith racial ability, your new form has a +2 bonus to Constitution.

Special: You may select this feat once every eight levels (one for characters 1st-8th level, twice for characters 9th-16th level, and so on). Its effects stack.