The brown suit is still my favorite Wolverine costume. It was during those times that Logan was still not ridiculously over-powered (or OP, as the kids say nowadays). He was hard to kill, but it wasn't impossible.
I've always liked Native American characters when I was growing up, and Puma is no exception. He debuted as a Spider-Man adversary, but even then he didn't seem villainous. I think he's more of a Deathstroke-like character, straggling the line between friend or foe.
