They're a really easy fight with one or more party members along with confusion immunity potion. Sleep immunity can also be useful. You can fight them solo but the immunity potions will be basically necessary, and the Free Soul skill will also help a lot. Violet is a great help if you have her. Nel on autopilot is also pretty good at taking them on but might possibly be vulnerable to stalemate if alone. Recommended attributes: high willpower and arcane, low allure. Cooldown not important unless you have a light spell. Elf armor might be useful here. Hmm I wonder if that was intentional?