>>56383571He means the battle academy cards. They're just JP merch to help kids on how to play the game. Fusion strike combined some of the cards from there into the set to make them available in global
Stellar crown will be doing the same with these cards like darkrai ex. The cards themselves are obviously garbage because they were intended for the kids pack, meaning they screw over getting the actual good ex cards from stellar crown (like terapagos, galvantula etc) a lot more difficult since they will share the same rarity in a pack.