This account is not quite 2 months old. (Restarted as f2p). I’m moving slowly through story mode (at 6.1.1) and won’t have a bounty of awakening gems, 6-star shards or 6 star sig stones anytime soon. Which would you pick?
Current 6-star roster:
Skill: Kingpin
Science: spider-ham, she-hulk
Cosmic: Hercules (awakened), Hyperion
Tech: ultron, sentinel, punisher 99, Mysterio
Mutant: storm pyramid x
Mystic: Diablo (awakened), Mordo,
longshot