So at first I was wondering to myself, "Why the hell are they making Luke Cage an avenger?" I mean yeah, he's got super strength and unbreakable skin, but I mean... I think you need a little more than that to be an Avenger, no? I mean Thor was on the team at one point. So that got me wondering... then I came upon a little gem. You see, they let Luke Cage on the team because he is batshit nuts. A little explanation: Once long ago back in Luke Cage #8, Dr. Doom hires Luke Cage to beat up some black robots. Cage does so but Dr. Doom runs out on the bill (why Luke Cage doesn't think that a SUPERvillain wouldn't run out on his bill is beyond me.), but not before tiding up the embassy and shutting it down. So then Mr. Fantastic (being the asshole that he is) lends Luke Cage a rocket so he can fly to Latveria to pick up on his, get this, two hundred dollar bill. Yeah, that's right, Luke Cage flies a rocket to Latveria to pick up 2 bills from Doctor Doom. Now I don't know who Reed is fucking with more, Cage or Doom. Reed: Alright, fly safe! *Cage flies off* Thing: OMG, you jackass, I can't believe you just gave him that rocket. Reed: I know, this'll be great. I don't think Doom's going to be sending a Christmas card this year. So anyway Cage flies off to Latveria beats up Doctor Doom's guards. Barges into his room and says: That's right Luke Cage calls him, "honey". Then Doom says: So there you go. Luke Cage is in the Avengers because he's motherfucking insane.