BeastBlade - Level 40!
BeastBlade is a Katana/Regen scrapper. He was built as a soloing powerhouse. He's probably not the best level 40 soloist around (that piece of pie probably goes to the fire controllers) but he's a mean can of whoop ass to be sure!
To give you an idea, he was hunting in Peregrin Island at level 37, and able to take on a mob of level 43 minions, or a Fake Nemesis + WarHulk + 1-3 Lut's level 41
The only thing he cannot solo is Arch-Villains, but they are meant to be exaduratedly tough.
One of the highlights of his career was a team I put together at level 37 to fight the Arch Villain "Envoy of Shadows." It was a team of 6 people, all of which were between level 30 and 35 (I run my missions on invincible, so we were fighting level 38-40ish mobs) the level 36 scrapper I Was with (Katana/Super Reflexes) commented that he had the same mission, but his missions were on "hard boiled" (which is the lowest mission difficulty rating, i believe, whereas invincible [my setting] is the absolute hardest). I made the remark that I could solo everything in his mission at his setting [except for the AV] without any help whatsoever, even with it set for the entire group of 6 people. At this point the level 30 healer (Empathy Defender) (wo, incidentally, I'd rendered almost absolutely useless the entire time, except for the AV fight [which was the reason he was there at all]) said "Normally this is the point where I would pipe up with a sarcastic comment, but I have to admit -- You're the man!" Needless to say, that felt good ;)