Best champs to rank up From 2015!
Cosmic:
Spiderman symbiote
Drax
Venom
Ronan
Groot (for defence maybe)
Mutant:
Magneto (for your defence upgrade he is nice sparky counter)
Mystic:
Magik
Juggy
Dr Strange
Unst colossus
Science:
Luke Cage
Electro
Ant-man
Spiderman (classic)
Abomination
Hulk (maybe)
Cap Ww2
Rhino (for defence)
Yellowjacket
Skill:
Moon Knight (ok defender)
Punisher
Winter soldier
Hawkeye
Tech:
Ultron
Star Lord
Vision (og)
I think those are best champs from 2015 to use rank up materials
What is your thoughts?