Ok so pretty much...
If you get Brain Freeze, you can cast Fireball/FF bolt as many times as you want until the debuff has run out.
Also, cast 1 frostbolt on the target. (Make sure you have no self buffs on. Ex. Mage Armor/Frost Armor/Molten Armor)
Then icelance the living crap out of it. If you're speced into frost. CoW will stack 5 times and you will hit constant 3-5k's with Icelance. Also... The WPE bug DOES work, so constant Icelance/FF spam and you win.
Kind of a huge mana user, but mages suck otherwise pretty much. Arcane isn't mana efficent on there, uses up like half your mana in 5 seconds.
Tested about 5 minutes ago on the X500 server.
Gogo kittylazors. Really annoying in WSG too!
Also: Water ele is a permanent pet and will not despawn unless killed.