Detach

To detach is to send an Xyz Material(s) attached to an Xyz Monster to the Graveyard, whether it be as a cost or an effect.

When a Xyz Material is detached, it is not treated as leaving the field, since Xyz Materials are not treated as being on the field; so the effects of monsters like "Sangan" and the conditions of monsters like "Plaguespreader Zombie" are not applied.

A detached Xyz Material is treated as being sent to the Graveyard however, so effects of monsters such as "Heraldic Beast Leo" and "Needle Sunfish" will activate when detached.