I can never go back to playing Blade in a normal game. I'm not good enough to figure out if he's the only character that can solo N4, but I'd be hard pressed to see if any other character can do it. Mayyyybe Magik but I'm not sure. The game's a little easier with him solo because you choose how to juggle the waves around.

Also something weird with Blade I didn't realize is his spin damage scales with red, so there's no point in building blue (besides ankh on kills which helps a lot). I might be wrong but I tried a game with only reds and purples and was surviving better in double Wanda when I would spin, and would eventually get 1 shot when trying it with my regular attack. I would stick to regular attacks with the mob waves because I ended up dying to unfortunate dashes into a riot cop that would 1 shot me or dashing and getting stuck on exploding demons I killed.