Can you implement auto HM 10 and all skills unlocked with like a token of some sort that is sold on the website for like 10€ / month.
Ofcourse make it only for for that char to be able to enter arena only while the token is active. And when it isn't, char is back to HM 1.
It's like premium, but only for peopel that want to PvP.
I love PvP in this game, but PvE is a boring grindfest.