The Penguin, Arms Dealer

Penguin Patrol — When The Penguin, Arms
Dealer enters the battlefield, create X 1/1 black
Penguin creature tokens. You lose X life.
Sacrifice a creature: Return target Equipment
card from your graveyard to your hand.
"My dear penguins, we stand on a great threshold!
However, many of you won't be coming back."
—The Penguin