Royal Oppression (CP08-EN013) [Champion Pack 8] Oath of the Gatewatch Prerelease Promos then you can Special Summon

then you can Special Summon 1 Xyz Monster from your Graveyard

Then that player loses all unspent mana and you add the mana lost this way

When Normal Summoned

Set: Ancient Prophecy Card type: Tuner Monster Rarity: Ultra Rare Attack: 800 Defense: 0 If this card is face-up on the field

Set: Wizards Play Network 2011 Type: Artifact Creature — Phyrexian Myr Rarity: Rare Cost: {2} Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters

Royal Oppression (CP08-EN013) [Champion Pack 8] Oath of the Gatewatch Prerelease Promos then you can Special SummonSet: Champion Pack 8 Card type: Continuous Trap Rarity: Common Attack: 0 Defense: 0 Either player can pay 800 Life Points to negate the Special Summon of a monster(s), and or an effect that Special Summons a monster(s) and destroy those cards.