Mana Vault [Revised Edition] Prismatic Secret Rare you can inflict 400 damage

you can inflict 400 damage to your opponent for each "Burning Skull Head" in your Graveyard

Set: XY: Ancient Origins Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Set: Black & White: Next Destinies Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Scion of the Ur-Dragon becomes a copy of that card until end of turn

Set: Alpha Edition Type: Creature — Djinn Rarity: Rare Cost: {4}{U}{U} Flying (This creature can't be blocked except by creatures with flying or reach

Mana Vault [Revised Edition] Prismatic Secret Rare you can inflict 400 damageSet: Revised Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.