Ben 10,000,Ultimate Hero

Vigilance, Haste
Ahead of the Game- When Ben 10,000, Ultimate
Hero attacks, you may reveal the top card of your library. If it's a creature card, you may cast it
without paying its mana cost. Otherwise, put it
into your hand.
"A master of both time and transformation, Ben
10,000 stands as a beacon of hope across the
timelines."