Can you share which 3* units are those? So we can keep.atm 3* units have no use except one or two special hero who shine on their effectI was so unlucky I have 5-6 of the same 3* units I could even limit break them somedayIf you don't limit break your hero you can't go any further
And a full limit break hero is equal to a 5* +2 hero then why not?
Do I better train them for 3* limit break or just use them as fodders to other potential 4-5*?
you just need to upgrade them and some quips for hard trial require 3* hero
otherwise, use them for fodder ._.