Yah...I use Jaheira as a tank (yah, yah...I know...you can all stop sniggering now). She can be pretty brutal with the Scimitar +2:Belm and with the Sling of Avoreen or the Sling of Evarard.
Along with Summon Fire Elemental, Insect Swarm (which I have yet to see be ineffective despite many spell protections), and Iron Skins she's a regular bad-ass...
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My *God* man...would you *please* eat something!?