Depends can it be activated while devos asleep and is it just the stands or are users present also?

I mean enbony devil btw

Yeah sure I guess.

Than devo needs to get hit once and survive till the stand finds mannish boy who I will now call killer baby.

ED because it can work technically whenever.

That's an interesting match up. Unless death 13 has prep time or actually one shots him in the dream, death 13's f*cked