Ospid Revenant

Hiding (Whenever an opponent's creature attacks, exile this creature until the beginning of the next end step.)
Whenever Ospid Revenant or another Spirit enters the battlefield under your control, you
may pay {1}{u}. If you do, draw a card.
Every generation the geists of Sarka Manor cluster at Ospid delta, each adding their own bloody chapter to the tale of the Ospid Horror.