Epona: LOL I like insane wizards!
I wouldn't trade Edwin for Xan unless you really need to because of alignment problems (Edwin=evil and Xan=neutral), because I really hated the fact that Xan can't cast Magic Missile (which is the only 1st level spell I use anyway)
In my current DSOTSC party which I started yesterday I have
Myself as a true neutral cleric
Jaheira
Xzar
Imoen dualled to Conjurer
Kagain
and Bub Snikt who probably has the most ridiculous name in the history of RPG. He's a fighter from the expansion pack but I cheated and gave him enough DEX to dual him to thief
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Melusine, Archbabe of the Order of the Holy Flame and the Laughing Hyenas, &
Official Entertainer Elf of the BG2 Bar
Your voice is ambrosia