Who to 6 star next?
I'm looking for advice on who to rank up next. I'd prefer a champion with broad usefulness to a specialist (though if Coldheart is the clear answer that's fine).
The options are: Bellower, Coldheart, Kael, Apothecary, Crimson Helm, Skull Crusher, Armiger, Thenasil, Athel, and Richtoff the Bold (listed because he's my only legendary). My only 6* currently is Elhain. Thanks for your suggestions.