I think Xocenk idea is very good, 2k hero is bug, it's just very popular so no one cares before, but after new "mechanic" it's gonna be tragic for gameplay on many templates. Stables + arts bonus should exist, full mana is fine in next turn. I think it's huge change and players need some time to adapt (hopefully there will be a chance to play old patch at least in World Cup final)
After Sav post not sure but if it's possible dead/deleted hero goes at the end of queue and they can't come back untill full pool is used, that would be interesting