3 Level 6 monsters Once per turn: You can detach 2 Xyz Materials from this card; return all other cards on the field to the hand. Your opponent cannot activate cards or effects in response to this effect's activation.
it has powerful effect and decent stats, what do you expect? Of course there will be a drawback somewhere, in this case it's the heavy materials.
Also, amusingly it has 3 materials attached, but its effect detach 2, meaning on the next turn unless you use Overlay Regen, you can't use its effect anymore and you get 1 material left hanging for no reason.