This is not an easy fight, especially if you are one of the few people who don't cheat. Nonetheless, the way that I beat these Warders was by hiding my weak party members down the hall and juicing up my best bruisers. As Hayashi mentioned, summon as many monsters as possible. And to be really really cheesey, (I never tried this) go use your Nymph Cloak and charm as many respawning monsters as possible, save the game, then go and charm more. Soon enough you will have your very own army of spiders and Dopplegangers.
However, if you would rather use conventional methods then just haste your tank (who is also wearing 'Boots of Speed'), give him your best strength potion, give him a 'Heroic potion', and use whatever else your heart desires. They can be beaten, don't give up! Oh and also, after you have beaten them, post back here and tell us your story.
