Detach
Revision as of 22:25, 16 February 2013 by 98.251.73.40 (talk) (Kevin Tewart confirmed that effects like Sangan and Reborn Tengu get their effects when detached.)
Detach refers to the act of separating an Xyz Material attached to an Xyz Monster either as a cost or by an effect (that uses this term), sending it to the Graveyard as a result.
When a Xyz Material is detached, it is treated as it leaving the field, since Xyz Materials are treated as being on the field; so the effects of monsters like "Sangan" and the conditions of monsters like "Plaguespreader Zombie" are applied.