Black Widow, Super Spy [Marvel Super Heroes]

Set: Marvel Super Heroes Type: Legendary Creature — Human Spy Hero Rarity: Mythic Cost: {1}{B} Menace Whenever Black Widow deals combat damage to a player, that player exiles cards from the top of their library until they exile a nonland card. You may put a +1/+1 counter on Black Widow. If you don't, you may cast the exiled nonland card until end of turn and mana of any type can be spent to cast that spell.