I'm going to walk through the talent

When you realize that tanks you have will not hold the aggro on the majority of mobs after WoTLK Gold they've pulled an enormous pulling, you can use the mirror images to go for AOE and know that you're unlikely to pull a girl.

Now I'm going to walk through the talent tree as well as some of the changes going from TPC to Wrath Lich King for each of the different arcane skills, as well as various arcane specs that you can use. But first I need to go over the biggest change in arcane. It's been a change made to the Arcane Blast, and the debuff that it gives.

Also, before and WOTLK you can increase the mana cost for arcane blasts, and reduce the cast time of your Arcane Blast. Now, what it does is increase the damage of the arcane spells in general as well with the mana cost associated with Arcane WoTLK Classic Gold Blast. And this effect will stack at up to 4 times and last for six seconds or until an arcane spell is used.