Ok so I haven't played this game in years and I left with like a level 24 acc, maybe 7-8 heros more or less, and about 5k credits. I just came back and after opening my mail I was given 1.62 Million credits. Is this a lot and what should/could I do with it all?
Be aware that each level becomes progressively more expensive, so that 1.62 mil isn't going to last as long as you think. With that in mind, you may want to be selective about what characters you level (i.e., only level the characters you actually use).