ISO = Experience Points

Dude with high level covers gets a new cover. 141 hulk +141 BWGS + new char.
Farm away to speed level the 3rd character. The 3rd is viable and contributing within an hour or 2. Lvl 40 doesn’t take long.

The idea overall is great. There would have to be tweaks to prevent things like this^
There would have to be a system on how much ISO could be “cloned” as you call it, to make the the ISO dump isn’t too extreme. Otherwise I can definitely see the potential to create roster diversity.