3 Heads: Destroy all monsters your opponent controls
Shuffle that Ritual Monster into the Deck during your opponent's End Phase
May their mighty fangs devour all foes! Illustrated by Dmitry Burmak Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
Once you can place 5 or more cards under a Tamer, use [BT18-088 Takuya Kanbara & Koji Minamoto]'s or [BT18-097 Darkness to Light and Thunder to Cannon]'s effect to digivolve into [BT18-042 MagnaGarurumon]
shuffle them into the Deck, then draw 2 cards (draw 3 cards instead, if you had no other cards on your side of the field and in your hand when you activated this card)
With the latter two, you'll negate some effects and even swarm your field, draw some cards, or get a Thunder Dragon from your deck into your hand