After forging the Destiny Wand and an archmage becoming a Destiny Knight, head to N0 E0 in the wilderness for the penultimate battle in Bards Tale II. Fill all your slots with your toughest characters. You'll face 2 groups of 25 associates and LAGOTH ZANTA. Good luck.
Recommend also having learned the Dreamspell. It's powers work wonders between rounds. Took me 5 rounds of combat with two Archmages using the Destiny Wand and Dreamspells, plus a Bard with a Molten Horn to clean up the strays. Use a thief to sneak up and strike down Lagoth if you can't approach. He likes to summon the Brother's Kringle.