Delet Character
I think it would be a lot better if when we want to delete some character it just get deleted on the same time.
Oh yeah, but you can get hacked and someone delete your char, then with this, a implementation of a password to lock/unlock every char on the accout.
You select the chars you want to keep more safety on the account then you "lock" him with a password (of course, not the same of your account)
Sacrifice Skill / Boting
We all know whac turn boting worth are the sacrifice.
Them, my proposal are to turn the skill on a %chance to excite the mobs in a range area, and a bigger cooldown, like 30 seconds, on this way, bot will get worthless, because the knight, cahmpion will do the work of luring, but the time must be active to kill, heal, run for safety, turn back to the battle.
The way it work actually you can sacri the whole time, mobs will focus you 85% of the time and you can bot a cleric healling ad bot a champ/mage killing with aoe, and you can sleep or go to the party.