Lazav, Dimir Mastermind [Gatecrash]

Set: Gatecrash Type: Legendary Creature — Shapeshifter Rarity: Mythic Cost: {U}{U}{B}{B} HexproofWhenever a creature card is put into an opponent's graveyard from anywhere, you may have Lazav, Dimir Mastermind become a copy of that card, except its name is Lazav, Dimir Mastermind, it's legendary in addition to its other types, and it has hexproof and this ability.