Advanced Crystal Beast

When Jesse becomes possessed by Yubel, the Crystal Beasts are transformed into Advanced Crystal Beasts, which look like wilder, more feral, and more armored versions of their original forms, complete with their own ace card, "Rainbow Dark Dragon". Crystal Beast-orientated Spell and Trap Cards also work on "Advanced Crystal Beasts" on the field, since their names are treated as the same as their normal "Crystal Beast" counterparts. But, they have a weakness: they can only be face-up on the field with the Field Spell Card "Advanced Dark" in play, otherwise they are destroyed. "Rainbow Dark Dragon", in the anime, can't exist without all of the "Advanced Crystal Beasts" on the Field, or in the Graveyard, otherwise it will be removed from play. So far, the Advanced Crystal Beasts have not been released in TCG or OCG.