Hi there new one!
Sure, it's pretty simple if you've got some handy summoning spells in hand. Cast them where the entrance is to the cave, (near the solomatic knights) and then lure each one or two into the area.
The mages won't chase you, but the fighters will so you have some backup to help you fight them off - do a "gang up" style attack.
Then, when only the wizards are a threat, have a few leftover summoning spells such as Jaheria's (half elf woman) Animal Summoning 1 and get them to be the "bait" for the the powerful spells.
You just go in and endure the remaining minor spells and hopefully it won't be too long before they fall to your blade's offensive spin!
Good Luck
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