The Warrior of Light

As long as Warrior of Light isn’t on the battlefield, it’s all colors. While on the battlefield, Warrior of Light gains the color identity of Classes attached to it.

Class enchantments in your hand and library are Auras in addition to their other types and gain, “Enchanted creature gets +X/+X where X is this Class’ Level.”

Job Change {3}
(Exchange a Class Aura attached to this creature with another Class Aura card in your hand or Library, then shuffle your library.)