Phantom, Crazed Killer

(Transforms from Phantom, Bloodshot Execution)
Trample, haste
At the beginning of each player's upkeep, that
player discards a card. If that card was a
noncreature card, you draw a card.
At the beginning of your end step, if a player has
five or more creatures in their graveyard,
transform Phantom, Crazed Killer.