When Viggo enters, return target creature card with mana value 1 or less from your graveyard to the battlefield. : Transform Viggo. Activate only as a sorcery.

Menace (This creature can't be blocked except by two or more creatures.), trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.), haste (This creature can attack, and as soon as it comes under your control.) Whenever Viggo attacks, you may sacrifice another creature. If you do, draw X cards, then you may put a permanent card with mana value X or less from your hand onto the battlefield, where X is the sacrificed creature's mana value.