Arc Rebellion Xyz Dragon

[ Dragon / Xyz / Effect ] 3 Level 5 monsters This Xyz Summoned card cannot be destroyed by card effects. You can detach 1 material from this card; you can only declare an attack with this card for the rest of this turn, also this card gains ATK equal to the combined original ATK of all other face-up monsters on the field, then, if this card has a DARK Xyz Monster as material, negate the effects of all other face-up monsters on the field. You can only use this effect of "Arc Rebellion Xyz Dragon" once per turn. ATK/ 3000 DEF/ 2500