Be prepared.
Make sure you have a Spell Trigger ready, filled with Lower Resistance, also... have a Chain Contingency filled with 3 Abi-Dalzim's Horrid Wilting, set to trigger when enemy sighted, cast at nearest enemy.
That's my 2cents, there should be lower-level tactics though.
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If not a Sorcerer casting total oblivion, then a Paladin meting out justice. Otherwise, I think I will just be a bard and torture my enemies with, "My Heart Will Go On".
Platinium Sorcerer of ALSB,
Aerie
Loving
Sacred
Band! She's MeowRrrr, and more!
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Baldur's Gate Item Mart