Bit of an odd question
I'll soon have 4 5* (have 24 medals on current event)
10 4*
So squad wise I can nearly make 3 squads already with 4*+
My question is...are any 3* worth keeping and evolving? They easily get 4 slots and level 5 skills....so I was wondering are there any real gems amongst the 3* that are really worth keeping or do they phase out gradually over time?