Mask of Memory [Commander 2014] 153a when your opponent activates a

when your opponent activates a Spell Card

You can only attack with Synchro Monsters during the turn you activate this effect

When this face-up card is destroyed and sent to the Graveyard by a card effect that your opponent controls

Set: Conspiracy: Take the Crown Type: Sorcery Rarity: Rare Cost: {4}{B}{B} Council's dilemma — Starting with you

using monsters you control as Fusion Materials

Mask of Memory [Commander 2014] 153a when your opponent activates aSet: Commander 2014 Type: Artifact Equipment Rarity: Uncommon Cost: {2} Whenever equipped creature deals combat damage to a player, you may draw two cards. If you do, discard a card. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)