SPOILER
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If you play TDD (an awesome mod for BG2) and complete the planar sphere, you are left with some curious body parts which fuse once you have the final piece (killing lavok) at the end of the quest.
This creates a statue which summons a Golem once per day (Juggernaut i think, cant remember which golem, but it isnt important). Anyway, use this to destroy the lich's as the golem is immune to magic [img]smile.gif[/img] ) at the very least i got Kangaxx to use all his time stop spells etc before i had to engage him myself, then True Sight-Breach-Pierce Magic-Charge-Ezy Ring of Gaxx [img]tongue.gif[/img]

Where do you get TDD and what does it stand for.

TDD = The Darkest Day.

Its a cool unofficial expansion for SoA, which you can get from www.teambg.com . The only problem is that is still incompatible with ToB.