Beyond God 5*s vs Demi 6*s
Currently I'm at 6.3.2. I have r3 Ultron and Fury will be r3 in few days.
Now
As yhe game is going...
Due to BG sometimes I'm tempted to upgrade good 5*.
Should I upgrade 5* just for BG and fun or should I just focus resources (obviously Limited) for demi or so 6*s ?