When Mindclaw Shaman enters the battlefield, target opponent reveals their hand. You may cast an instant or sorcery spell from among those cards without paying its mana cost.
Nicol Bolas gives power to those who will abuse it most.
Flying Slumbering Dragon can't attack or block unless it has five or more +1/+1 counters on it. Whenever a creature attacks you or a planeswalker you control, put a +1/+1 counter on Slumbering Dragon.
Flying Haste When Thundermaw Hellkite enters the battlefield, it deals 1 damage to each creature with flying your opponents control. Tap those creatures.