Hades, God of Himself

Deathtouch, hexproof
Whenever any creature is sent to the graveyard, exile it instead, put 2 death counter on it, remove a death counter during your next upkeep, when all death counters are removed, you may play that creature without paying it's mana cost. Hades, God of himself gets +1/+1 for each creature until the end of your turn.
Name's Hades, Lord of the dead. Hi, how ya doin'?-Hades