I'll give the basic idea of the character so far
	History
-He was uniquely built for world domination. (cliché)
-Evil genius builder caught and executed.
-He was to be dismantled, but the found that he had developed a very rare 'free-will glitch' that some other robots can develop.
-Big legal right battle. If he has free will can you consider him a citizen?
-Gets stuck on a 'probation' for awhile.
-Someone gets a bright idea to sent him to a school that trains warriors to use him as a weapon.
-Voilà, transfer student.
	Characteristics
-Big, heavy, surprisingly fast, and strong.
-Very hard alloy.
-Quite intelligent.
-Rudimentary sense of humor.
-No guns or magic, just uses his fists.

Just a rough idea, still fleshing it out. If it doesn't work, I have a backup idea.