Talk:Light and Airy Idol Band, "Pastel＊Palettes"/@comment-38660814-20190512052343/@comment-26684750-20190512064500

Normally, yes.

But crossover cards can only be used in crossover flags. Inversely, only crossover cards can be used in crossover flags (ie. You can't use Gargantua Dragon in the Detective Conan flag).