Advanced format ruling
Guardian Elma
Card effect (current official text)Cannot be Summoned unless you control a face-up "Butterfly Dagger - Elma". When this card is Normal or Special Summoned: You can target 1 appropriate Equip Spell Card in your Graveyard; equip that target to this card.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.