Bart, known as the Genius Gamer and the Crazy Highschooler, possessed the Creator class. A Creator could learn other classes' spells/skills, as long as they met certain conditions.

Of course, a Creator couldn't gain proficiency in these skills/spells; in exchange, they could freely mix and match these abilities to create something new. 

A talented Creator could go even further, and fuse three or four skills/spells together. At the moment, Bart could fuse a maximum of three abilities together.

"Hoo!" Bart extended his hands.

This was his most powerful attack, one created by selecting three abilities from countless others and fusing them together. He fused Light of Judgment, Darkness Wave, and Chi Torpedo to create… Chaos Sphere!

Whoosh.

He unleashed an orb of light and darkness from his hand. The slightest touch would cause the unstable mixture of opposing elements to explode. 

Boom!

Their ears rang from the noise! Kang Oh believed it to be the largest and loudest explosion he'd seen thus far. The power was no joke either. A portion of the Bone Golem's body had been destroyed, revealing Eclipse's...