Adreus, Keeper of Armageddon [GENF-EN086] Secret Rare Forbidden Legacy neither player can Special Summon

neither player can Special Summon monsters from the Extra Deck while this card is face-up on the field

// Select and add 1 Elemental Hero

Sacred Phoenix of Nephthys rises from the ashes and is reborn as a Ritual Monster

Set: Dark Crisis Card type: Field Spell Rarity: Common Attack: 0 Defense: 0 Neither player has to pay Life Points during the Standby Phase of Archfiend monsters

so it's easy to meet the requirements of whatever Ritual Monster you want to Summon

Adreus, Keeper of Armageddon [GENF-EN086] Secret Rare Forbidden Legacy neither player can Special SummonSet: Generation Force Card type: Xyz Effect Monster Rarity: Secret Rare Attack: 2600 Defense: 1700 2 Level 5 monsters Once per turn: You can detach a Xyz Material from this card to target 1 face up card your opponent controls, destroy it.