Humhumming the Key Djinn is a Super Rare XYZ Monster card from Yu-Gi-Oh! (World Superstars, WSUP). Current market price: $0.28.
Super Rare
World Superstars (WSUP)
Card Text
2 Level 3 monsters
When this card is Special Summoned: You can target 1 "Djinn" Xyz Monster in your Graveyard; Special Summon it, then you can attach up to 2 cards from your hand to it as Xyz Materials. Once per turn: You can detach 1 Xyz Material from this card, then target 1 "Djinn" Xyz Monster you control; this turn, it can attack your opponent directly.
