Viserion

Flying, Vigilance, Haste

Whenever Viserion attacks, look at the top
seven cards of your library. You may cast an
instant or sorcery spell with mana value less
than or equal to Viserion's power from among
them without paying its mana cost. Put the
rest on the bottom of your library in a random
order.
— Alt version of Velomachus Lorehold —