Forum:Dark Law XYZ Material Interactions

I only just recently got into Yugioh, and am not entirely sure on complex card rulings and interactions, so forgive me if I seem ignorant.

I recently got done playing in the old, non-Link format against someone using a Dark Law, who claimed that any XYZ monster that lists "detach an XYZ material from this card to ___" cannot use its effect, because the detached card would be banished and the detach cost wouldn't be met. I've looked into the rulings for both detaching XYZ materials and Dark Law, and nothing indicates that the effect can't be used/the cost can't be payed. Is he correct, or was this a huge misplay? Any insight on the workings of Dark Law will be appreciated.

DJBIGGIG (talk • contribs) 06:10, March 15, 2018 (UTC)