Skull Archfiend of Lightning [DCR-EN073] Ultra Rare Trap then you can apply the

then you can apply the following effect

Set: Spell Ruler Card type: Normal Spell Rarity: Ultra Rare Pay 1000 Life Points

then target 1 card your opponent controls

your opponent''s monsters on the Field are destroyed

Skull Archfiend of Lightning [DCR-EN073] Ultra Rare Trap then you can apply theSet: Dark Crisis Card type: Effect Monster Rarity: Ultra Rare Attack: 2500 Defense: 1200 The controller of this card pays 500 Life Points during each of his her Standby Phases (this is not optional). When this card is specifically designated as a target of the effect of a card controlled by your opponent, when resolving the effect, roll a six sided die. If the result is 1, 3, or 6, negate the effect and destroy the opponent''s card.