At first as every mage, you will depend on fire, so Flame, Fireball, Purgatory Fire, Fire Knowledge will get most of TP, followed by Elemental Catalysis (5 min CD, adds 20% magical damage for 20 sec at first, and then at level 65 it adds 50% reduction of casting time as well).
At some point most of mages start puting points into Wind Knowledge, Lighting (must level it to least L15 in the order to get another great AOE) and Thunderstorm (real reason you leveled lighting.)
Once you have level both main and secondary, you have to get elites (best place would be Heffner Camp, old beg quests.)
Cursed Fangs by itself is low hit attack, but once you level 30 and have Fang Ritual (15M buff), your CF will do some nice damage, and it's spamable.
Kiss of a Vampire is nice elite where you get 10% of HP back for succesful hit.
You can read more about this class combination at
RunesDB.
Mage stating is mostly as much of Inteligence and Magical Attack as you can add, followed with Stamina. Some mages add Wisdom as well, which adds more mana points and ads to accuracy.
For lower levels just quest gear with couple pieces from AH (dirtu stated with yellow stats), at level 55 go for
Elemental Flame set if you can (3 pieces are enough) and
Void Staff. I still use
Vahtos' Spell set on my toon, because it adds 15% magical power overall and has nice crit rate.
ATM I have
Raksha Staff (thanks to friend) that I Teired to T9 and have +16 atm. That is close to 6K mDamage, lot's of crits and mAtack.