If magicians ingress into Academy City...then its time to ingress into the world. Love him or hate him, Kakine came face to face with the top tiers of the magic side. He's also, at least according to my theories, the esper most suited to magic. Think about it.
Magic feedback? Feed it into a separate Dark Matter clone to take the fall, hell turn it into an attack even.
Enhancement? He could construct clones of objects with religious symbolism to endow him and his clones the effect as all Dark Matter is linked to him. Idol theory nigger.
Deny it all you want Accelearraper fags, Kakine is one of Academy City's best hopes against Magic Side Imperialism, with or without Level 6.