Shamanite Shamanknight

“2+ Level 3 monsters If this card is Xyz Summoned, or if a Trap you own is banished: You can target 1 of your banished Traps; attach it to this card. You can detach any number of materials from this card, then target 1 DARK monster in your GY or banishment with a Level equal to the number detached; Special Summon it. You can only use each effect of "Shamanite Shamanknight" once per turn.”