I am a level 22 caster mage with Level III Lightning Bolt, Level III Fireball, Level IV Mage Armor, and Level III Mage Barrier. I previously defeated the dimensional parasite in the Ark as a level 22 archer rogue, but am having the hardest time as a mage. Even with the help of Lady Calenda and Sir Valeran, I can only knock out half its health, before Calenda and Valeran are knocked out and it comes for me. Once that happens, I last about two seconds, maybe one. I am not sure what the best strategy is, since once it comes for me, it's game over. I also have Level I Disintegrate, which maybe I should upgrade to Level III, though the cool down is so long, I don't know how much help that would be. I have avoided companions and summoning the entire game, but maybe that would be better. I would like to defeat it as a caster if possible. Any suggestions would be appreciated.