Voltaic Key [Urza's Saga] Effect Fusion Monster Your opponents can't cast spells

Your opponents can't cast spells of the chosen color

destroy the face-down monster immediately with this card''s effect without flipping it face-up or damage calculation

Set: EX: Emerald Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

attach it to a creature you control

Set: Duelist Pack: Yugi Card type: Trap Card Rarity: Ultra Rare Activate only when an opponent's monster declares an attack

Voltaic Key [Urza's Saga] Effect Fusion Monster Your opponents can't cast spellsSet: Urza's Saga Type: Artifact Rarity: Uncommon Cost: {1} {1}, {T}: Untap target artifact. The key did not work on a single lock, yet it opened many doors.