what GL is this

i heard of a GL who was so powerful that he fought parallax by himself and held his own even though he was just a normal gl, i heard he almost won too, but Parallax removed his human part and thus defeated the gl but i dont remeber what this guys name is can anyone help?

Umm, Kyle Rayner?

Rayner

either kyle or hal. Remember, hal actually fought the older (parallax) version of himself when he was just a rookie. But then parralax hal was persuaded to make his younger self forget the fight.

John Stewart. Just kidding.

Comic book questions thread. Yeah, thanks. Closed.