Diabolos, King of the Abyss [FOTB-EN061] Secret Rare Thunder destroy 1 face-down Spell or

destroy 1 face-down Spell or Trap Card

and destroy that card

(You do not use "Polymerization"

Set: Dark Revelation Volume 4 Card type: Fusion/Effect Monster Rarity: Rare Attack: 3000 Defense: 2800 "VW-Tiger Catapult" + "XYZ-Dragon Cannon" This card can only be Special Summoned from your Extra Deck by removing from play the above cards you control

or if this card in your possession is destroyed by an opponent's card effect and sent to your Graveyard: You can Special Summon 1 "Gaia The Fierce Knight" monster from your hand

Diabolos, King of the Abyss [FOTB-EN061] Secret Rare Thunder destroy 1 face-down Spell orSet: Force of the Breaker Card type: Effect Monster Rarity: Secret Rare Attack: 2800 Defense: 1000 This card cannot be Special Summoned. If you Tribute Summon this card, the Tributes must be DARK. This card cannot be Tributed by a card's effect. During your opponent's Draw Phase, before their draw, look at the top card of their Deck, then put that card on the top or the bottom of their Deck.