Caraxian Blood Lake

Caraxian Blood Lake enters tapped.
When Caraxian Blood Coast enters, each player sacrifices a creature. All creatures sacrificed this way are attached to Caraxian
Blood Lake.
{t}, gain {b}{r} or put a +1/+1 counter on target
creature.
{t}{b}, play attached creature until end of turn
(it returns to owners graveyard after).