Muzurhythm the String Djinn

[Fiend/Xyz/Effect]

2 Level 3 monsters
When a "Djinn" Xyz Monster you control is attacking an opponent's monster, during the Damage Step: You can detach 1 Xyz Material from this card; the attacking monster's ATK is doubled until the End Phase. You can only use this effect of "Muzurhythm the String Djinn" once per turn.

ATK/1500 DEF/1000

STARTER DECK XYZ SYMPHONY