Full Power Shaggy Rogers

+2: Draw two cards and discard X amount of cards, for each card discarded gain 1 energy.
-2: Destroy one monster on the field and place it under this card, then summon a Shaggy or Scooby monster with cost equal to or less than that card.
-12: Destroy all other cards on the field and in the hand except this one, then exile and cards in the graveyard and summon all cards under this card.