had no trouble with the encounter, but some random shit happened during the run so that someone died, examples include tripple atk a single hime twice in a row on early turns, wave 3 mini boss hitting 5 times with ougi the same target(happened actually twice, first time was just to finish mordred challenge, so i didn't care), atk debuff expired when quetz used her ougi on the last slither of enrage and barely managed to kill someone with it.
Stuff like this, last one was mistake on player side, the rest were just rng based things that made me go crazy.