[+2]: Target opponent exiles cards from the top of their library until they exile a nonland card. Until end of turn, you may cast that card without paying its mana cost.
[+1]: Each opponent exiles two cards from their hand.
[−4]: Nicol Bolas deals 7 damage to target opponent, creature an opponent controls, or planeswalker an opponent controls.
[−12]: Exile each nonland permanent your opponents control.