Follow any mage guide.

Int/Int/ee heal charm

Stay in back during catas

cata mages are really depended on heal mastery items and healing charm

all stats in int ofc boosting ur mana and healing dmg

i would honestly put possibly 5-10 first into Vit, im a great beliver in survival over max killing,

and that will give you an extra 250 vit at lvl 70 (if you put 5 vit)

and sacrifice like 3 casta of mana if your using a lvl 55 charm, not alot imo for 50% more life *shrug*

yep, pretty much what cata mages do