Abaddon, The Despoiler

Hexproof
At the beginning of your end step, return
Abaddon to your hand. If you do, pay 2 life.
{x}{b}{r}, Pay 2 life: Flip X coins. For each flip
that you win, Abaddon and each creature you
control get +4/+4 and your choice of haste,
double strike, vigilance, or deathtouch. For each
flip you lose, lose 2 life and discard a card.