I am using Kamil at level 51. That is way higher than normal, generally. That battle is 10% unwinnable. They need two defend-attacks each, and they all know revive. They can be run from and have 90% vacuum resist. This cave is only one tile wide for the entire duration, and it shaped to mimic the enemy movement pattern exactly so you can't avoid battles. The most cruel design ever. I hate this part.