5 star arena 10-30%.
I was just wondering if it is a cost /time effective way to grind for 5 star shards at my level? What is usually the cut off if it is not a hot champ? I usually grind 4 star basic up to 1.5 millions.For 4 stars, I have only 3 5/50, 8 4/40, about 30 3/30. I have only 9 5 stars mainly rank 2 only. Should I switch my grinding arena?You guys' opinions much appreciated with thanks.