Respawn Anchor

{t}: Add {e} and {b}.
{t}, Pay {e}{e}{e}{e}: Return target creature
from the graveyard to the battlefield.
{t}, Pay {e}: Destroy this artifact, exile target permanent.
Respawn Anchor enters the battlefield tapped and with {e}{e}.
If Respawn Anchor runs out of {e} counters, sacrifice it and draw a card.