If you're doing mistakes with shady guys next to you ... then that's an other story obvisouly. But considering the rates, having shots for a mage will be common, hence mobs will ge destroyed prety fast (meaning 2shot). Hence, expect a glad (with "instant" range cast stun), I don't think it's gonna be easy to stun a mage to kill him while he's farming. I may be wrong, but compared to a melee or an archer, I feel like mage are safer cause they'll use shots (but not our of danger).