So...
Basically, I had my 5-star crystal opening and I got a Mole-Man. I'm considered a rather new player, so I only have 6 5 stars including the Mole-Man. The list includes Mojo, Vision (Aarkus), Sabretooth, Hulkbuster, storm, and obviously, Mole-man. I'm kinda struggling on the Act 4 quests and I want to rank up some champions. I have my mojo at rank two right now so get him out of the discussion. In general, which 5-star hero should I rank up, why, and maybe an order because I might be able to rank up two champs. Thanks.