Contract with Ralmezoth

Contract (Starts outside the game face up. Can't be
cast. If it would leave the battlefield, exile it instead.
At the end of your turn, sacrifice this card.)
During your turn, if you would lose life, discard
a card and draw X cards, where X is the amount
of life you would lose, instead.
Whenever you discard a card, target creature you
control gains menace until end of turn.