Marcus Corvinus

Flying, Haste

Whenever Marcus Corvinus deals combat damage
to a creature or player, draw a card and investigate
(Create a colorless Clue artifact token with {2},
Sacrifice this artifact: Draw a card.)
{t}, Sacrifice four Clues: Create William, Father
of Werewolves, a legendary 6/6 red Werewolf
creature token with Haste