let's see
Jaheira isn't really needed if you already have 2 clerics
I say don't trade Nalia or Aerie unless it's for another mage
You need 3 mages and you only have 2
but You'll have 3 with Jan traded for Jaheira
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The Legend Rikard T'Aranaxz
Master Necromancer
Clanmaster and Mental Father of the OHF