ISO problem

I'm low on ISO trying to upgrade my doctor strange rank 3, but i'm trying to wait to get more ISO to fully rank 3/30. Just need suggestions and tips to get more ISO. I'm trying story but they don't give enough. (toss me tips and suggestions)


  • 1haunted_memory1haunted_memory Posts: 803 ★★★
    Quest, dup champs
  • ThawnimThawnim Posts: 1,461 ★★★★
    Grinding arena (even the 2* and 3* arenas) for crystal shards will allow you to get enough shards to hopefully dupe a champ for additional ISO. Other than that you can run Act 3 (Thanos quest) of story quests to build up higher ISO.
  • Once a week there is a t4cc arena, pay 10K battlechips and score 1.5 million and you will win 6 class 5k iso.
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