javile spirit

when javile spirit enters the battlefield, each player sacrifices a creature. flying, deathtouch, fear. javile spirit gets +1/+1 for each card in your graveyard. {x}{b}{b}{t}: each player puts the top X cards of there library into there graveyard, then you gain life equal to the amount of creatures put in your graveyard and your opponents lose life equal to life gained this way.