It just fanmade cards that I'm making. All the arcana spirits has Lv.4 with a special effect.
ArcanaJesterJoker, PersonaFool
Purple, X-Rare, Arcana Guardian/Clown, Cost 5, 2 Purple Reduction, 1 Purple Symbol
Lv.1: 1 core, BP4000/Lv.2: 2 core, BP6000/Lv.3: 4 core, BP9000/Lv.4: 6 core; BP15000