Should kabam upgrade iso for 6*

It takes so many iso to upgrade a 6 * should they give us more or rank them up higher for higher champs .

Comments

And 5*

Yes I just mean they should be made high enough to fill a 6* with out using a thousand of em but be used for whatever *

Like a 10k an have an event were you can earn them

Both 5 and 6 stars

5* too