Nicol Bolas, Imprisoned

: When this planeswalker enters the battlefield, exile it. You may pay {1}{r}{u}{b} for the first or {4}{r}{u}{b} to activate a loyalty ability.
0: Remove target permanent from combat. Tap it.
0: Exile a creature or planeswalker you don't control. Return it to the battlefield when another permanent that player control leaves the battlefiel