Nicol Bolas

Eminence — Whenever you sacrifice an artifact
or creature, if Nicol Bolas is in the command
zone or on the battlefield, you may surveil 1.
Flying, Ward {2}
When Nicol Bolas enter the battlefield gain
control of target creature. Untap that creature.
It gains haste until end of turn. Sacrifice it at the beginning of the next end step.