Just looking for some possible advice.

I have Elhain full 6 star.  Thenasil full 6 star, Tayrel 5 full star, Sinesha 5 full star, Minaya 5 star (no ascension yet).  

Arena i use Tayrel, Thenasil, Sinesha should I be using Minaya.

Also Do I stop putting upgrades into Thenasil and go with Sinesha and Tayrel for pumping up, Tayrel debuffs seem to help a bunch with Elhain massive damage. Elhain is fully equipped with legendary attack set.  Let me know what anyone thinks.