Nate is high tier.
*Can break through telepathic blocks effortlessly -- "Don't get me wrong. Your telepathic blocks are excellent. But you've never met anyone like me before." (X-Man #64)
*The "Gauntlet", a group of powerful mutants, said that "the power you radiate is unbelievable." (X-Man #64)
*His power is so great that telepathic blocks are almost nothing to him -- "If I pushed your blocks any harder, I'd turn you into vegetables. I don't want to do that." (X-Man #64)
*Can fairly easily pick out 12 minds amongst 10 million people
*While talking to a woman in the middle of New York, he telekinetically grabbed ten individuals throughout New York, raised them up into the sky, and blew them all up (X-Man #66)