Dualcaster Mage [Commander Legends] Elf Spirit treat this card as a

treat this card as a Tuner this turn

using it as the Fusion Material

The complete Ancient Guardians booster set contains 60-cards:

Set: 2014 Mega-Tins Mega Pack Card type: Counter Trap Rarity: Common Attack: 0 Defense: 0 When your opponent activates a monster effect: Detach 1 Xyz Material from a monster you control

Dualcaster Mage [Commander Legends] Elf Spirit treat this card as aSet: Commander Legends Type: Creature Human Wizard Rarity: Rare Cost: {1}{R}{R} Flash When Dualcaster Mage enters the battlefield, copy target instant or sorcery spell. You may choose new targets for the copy. "It has been my experience that disasters like to strike in pairs."