Doubling Cube [The List] Giant Sacrifice an artifact: Search your

Sacrifice an artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value

if that creature came under its owner's control since the beginning of their last upkeep

Set: Sun & Moon: Lost Thunder Type: Item Rarity: Secret Rare

Set: Neo Discovery 1st Edition Type: Fire Rarity: Holo Rare Retreat cost: Colorless

Components

Doubling Cube [The List] Giant Sacrifice an artifact: Search yourSet: 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.