My Ideas for WotLK Mage Talents
I tried to make all three trees viable for PvP and PvE, focusing on utility for Arcane, damage/crits for Fire, and debuffs for Frost. I also fixed some "useless" talents such as Arcane Fortitude, Wand Spec, Frozen Core, Improved Flamestrike, etc. I purposely made some of the deeper talents very raid friendly so there's incentive to bring any spec of mage to a raid, and I added some survivability/escape tools for arcane and frost to make them more desirable in arenas.
I made Improved Fireball affect Pyroblast to 4 seconds, and added a 15 second cooldown to Pyro. I think this will let it be used in a fire rotation in raids, and allow it to be actually usable in PvP without PoM.
I swapped Improved Counterspell from a % chance to a duration increase with each point. I hate the 50% chance thing, so 1 point makes it silence for 2 seconds. Not a major change, but fixes a pet peeve.
Molten Fury now applies over a wider range of health (50% and under), but gives a smaller bonus. Overall it's a touch more damage and comes into play in more fights.
I tweaked a bunch of other stuff as well, so take a look and let me know what you all think!