Roboute Guilliman

Vigilance
The Emperor's Sword-Whenever this creature deals combat damage to a player, that player exiles the
top two cards of their library. You may play
those cards for as long as they remain exiled, and
may spend mana as if it were mana of any color to
cast spells from among them.
The Hand of Dominion-Whenever Guilliman
attacks or blocks, it deals damage to any target
equal to its power.