Well it depends, if you are going solo, hell yes. I fyou have six in your party... you may not reach it, or when you do, (given that you try to put spells in your spellbook, anything to have exp) it maybe the showdown with Irenicus already. But rest assured, when ToB comes, its gonna cross over and will kick some bad ass stuff!
hope this helps
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Chaotic Cavalier of ALSB, protector of the Innocent, slayer of the mad...