Probably the worst champion out of the starting roster, never had much luck with this "hand of justice".
His powers and weapons are easy enough to figure out. You have two pistols that fire in succession to each other.
And that's pretty much it, just moves that revolve around those guns. Even your super-move isn't really that great.
I've met a small amount of players with decent skill as Lex, but every-time I play as him I just let the team down and we usually lose.