I thought it would have been Spinner initially but even still like he could have fought a Nomu or something one on one as a proper final battle send off… you know thinking about it makes sense for All For One to have a way to deal with Stain… but that’s technically spoilers even though if this were the manga it wouldn’t be it’s weird… you know thinking about it someone’s quirk didn’t get used in the armoured might fight yet… weird…