Doubling Cube [The List] P-358 Set: The Duelist Genesis Card

Set: The Duelist Genesis Card type: Synchro/Effect Monster Rarity: Ghost Rare Attack: 2500 Defense: 2000 1 Tuner + 1 or more non-Tuner monsters You can Tribute this card to negate the activation of a Spell Card

Set: Duelist League Promo Card type: Effect Monster Rarity: Rare Attack: 2400 Defense: 1000 When this card is Tribute Summoned

Set: Alpha Edition Type: Sorcery Rarity: Common Cost: {2}{G} Destroy all enchantments

it deals 1 damage to them

or flips that monster(s) face-up

Doubling Cube [The List] P-358 Set: The Duelist Genesis CardSet: The List Type: Artifact Rarity: Rare Cost: {2} {3}, {T}: Double the amount of each type of unspent mana you have. The cube's surface is pockmarked with jagged runes that seem to shift when unobserved.