Guardian Elma (LCYW-EN129) - Legendary Collection 3: Yugi's World Unlimited

This card can only be Normal Summoned, Flip Summoned, or Special Summoned when there is a "Butterfly Dagger - Elma" on your side of the field. When this card is Normal Summoned or Special Summoned successfully, you can equip 1 appropriate Equip Spell Card in your Graveyard to this card.