Hello,
This is my build:
Mage PVP SUPP.
Stats I go with are:
offensive:
200 ele dmg, 500 DA, 380 bruta, 1 deter, rest all that is left over into proficiency.
Defensive:
500 caution, all rest inot suvivability (and hope for healers) or instead of surviva, concentration to last longer in fights. You don't need bloodlust since you heal with volcano/potions.
Goodluck!