pf2e.fyi
From Pathfinder Battlecry!, which isn't enabled.

Tough Cookie

FEAT 10
GUARDIAN
Activity 2 actions
Frequency once per day
Requirements Your current Hit Points are at half your maximum or less.

Though you've taken a lot of punishment, you aren't easily brought down. You gain a number of temporary Hit Points equal to half your maximum Hit Points that last for 1 minute.

Pathfinder Battlecry!ORC