i just saw the latest nerfs:
Mage (Forums / Skills / Talent Calculator)
Glyph of Evocation now causes mages with Invocation talent to gain 10% of your health (was 20%) upon completing an Evocation.
Arcane
Arcane Blast damage reduced by 22.2%.
Arcane Missile damage reduced by 22.2%.
Arcane Barrage damage reduced by 13.6%.
Frost
Frostbolt now deals 52% more damage, but its debuff no longer increases subsequent Frostbolt damage.
i think this seems a bit to much..... 22.2% on blast and missiles...