I thought it might be fun to put together some of the worst possible and lowest DPS specs possible with some ground rules:
1. Based around a focus like arcane, fire, or frost
2. 51 talent for the main spec miust be used
3. Class played properly and actually expertly, so the assumption is that a skilled player actually saddled with this spec will use all cooldowns, proper rotations and everything to do the best possible DPS with the spec
4. No choices of spells that are not used for the spec, so no reduction in fireball or frostbolt as an example
With these groundrules I came up with this winner for Arcane:
http://www.wowarmory.com/talent-calc...00000000000000
Obviously heavily crippled with no Missile Barrage, but will get a little SP back with frost warding and incanters absorption. Overall though even squeezing every single DPS out of the spec it would be pathetic.