SFS Standard Feign Death [reaction] Feat 2

Prerequisites expert in Deception
Trigger You take damage.

You lie prone and Impersonate a corpse. As long as you don't take any actions requiring anything other than your mind, you appear dead. To see through your ruse, a creature must succeed at a check against your Deception DC, either by Seeking or Recalling Knowledge. You can Ready an Action without ending this effect if you're a master in Deception.