Why keep 3* champs when you only play 4* and 5* ?
I keep in mind what i've been told from the beginning: Never sell a champion.
But i only use 4* and 5* champions when i play now, so what use are the 3* champs?
Yes, you get two 5000 rating ISO-8 when you get a 3* crystal, but that's like 5-10 ISO-8's a week.
If i sell all my fully ranked 3* champions i would get 182 assorted 5000 rating ISO-8's.
So why shouldn't i do that and use these 182 ISO-8's to upgrade my 4* and 5* champions?
What's the best long term tactical choice?