Squirming Pile (Combat, Teamwork)Source Blood of the Beast pg. 23
Your body is easily lost in the muddy chaos of fighting as a swarm, making your vital areas difficult to target.
Prerequisites: Acrobatics 5 ranks, swarming racial trait.
Benefit: While sharing a square with an ally who has this feat, you gain a 25% chance of negating the additional damage from a successful critical hit or sneak attack; if you negate the damage, it is instead rolled normally. This negation chance doesn’t stack with similar protection provided by any other source, such as the fortification armor special ability.