Can't equip my LV 30 Costume to my powered up Bane

[Olmor]

Avoid The Following Mistakes With Your Costumes

don’t level a costume on a 1.1 hero, if you already have a maxed one or you don’t plan to level up the baby hero, too (you’ll have to level the same costume multiple times to use it on multiple heroes, costume levels are saved separately for each hero) don’t keep more than one of each costume (you’ll only need one costume even to equip multiple heroes at the same time, but it has to be leveled separately for each hero, who should wear it) don’t forget to undress when taking a non maxed …