Card Rulings:Diabolos, King of the Abyss


 * If this card is Normal Summoned face-down, the monsters Tributed must still be DARK.


 * You cannot select this card as a card to be Tributed for a card's effect, like "Ectoplasmer".


 * If this card is targeted by "Soul Exchange", it can be Tributed for a Tribute Summon. It is still considered to be Tributed for the Summon, not by the effect of "Soul Exchange".


 * This card's effect "This card cannot be Tributed by a card's effect." only applies while it is face-up on the field. It can be Tributed for a card's effect if face-down on the field, or from the hand for a Ritual Spell Card.


 * This card's effect to look at the top card of your opponent's Deck starts a Chain, before their normal draw in the Draw Phase.


 * Only the controller of "Diabolos, King of the Abyss" can look at the top card of the opponent's Deck with this effect. The opponent does not get to see the card.


 * This card's effect to look at the top card of the opponent's Deck can only be activated 1 time during the Draw Phase.

Mentions in Other Rulings

 * [Re: Lich Lord, King of the Underworld] See "Diabolos, King of the Abyss" for Tribute Summon rulings.