Wollow, Founder of the Drudge Dragons

2+ Level 6 monstersMonsters you control gain 100 ATK/DEF for each card in your opponent's GY. (Quick Effect): You can target 1 card in your opponent's GY and detach 1 or 2 materials from this card, then activate the appropriate effect;• 1: Return it to the Deck.• 2: If the target is a monster, Special Summon it face-up, or in face-down Defense Position, to your field. If it is not, Set it on your field.You can only use this effect of "Wollow, Founder of the Drudge Dragons" once per turn.