So... you're permanently immobilized, acid will engulf you after a few turns, and you have to fight two drakes who can summon and have AOE attacks.
This fight seems impossible, honestly. I can't even kill the 6 guard titans before I die. My character is a shadowwalker, I brought Khalida and Silena with me. I feel like even blowing all my Group Heal scrolls wouldn't save me on this fight.