Illidari, The Hell Raiser

Double-Strike, Haste, Trample
Whenever Illadari, The Hell Raiser deals combat damage to a player, that player discards a card
At the beginning of your end step if a opponent
lose 5 or more life exile,
then return Illadari, The Hell Raiser transformed
The death of the unholy is its own reward-Illadari