This has been on my mind since I started getting more and more epic and legendary heroes. I have 3-4 heroes of each color that I am so eager to use already but since they’re low level they are not that usefull.
I usually just choose one hero to level up as much as I can. Recently I’ve been feeding Boldtusk delicious red meat like crazy but my 1/1 Azlar keeps looking at me all sad that he’s not getting anything. Same with Melendor - I finally got a Shield to ascend him to last tier so I’ve been feeding him green 1*/2*. But once in a while I give a few heroes to Little John so he doesn’t feel neglected (he’s level 12 now).
I found that method usefull in AW - my last tier heroes who are not fully maxed are powerful already, small leveling of my other “not a main focus right now” heroes gives me a little power boost.
What’s your strategy? Do you focus on only one hero to level them to max or do you level all your heroes equally?