Board Thread:Questions and Answers/@comment-35809937-20180607162613/@comment-33489892-20180607210510

They most likely spend tons of silver coins on ability packs or have already accumulated tons of abilities that correspond to the H2H fighter they just got.

If you wanna level up your fighters, it's best to do their careers because not only will you collect tons of silver coins from winning each fight, but you'll also open abilities boxes along the way and may even get new fighters as well. Also, do fighter sbowcases, live events and H2H seasons since they will provide you with plenty of silver coins as well. H2H seasons are especially important since the boxes you get when you go up in Rank will give you hundreds of abilities.