Quest 27-4: Water cyclops ahoy

Back again doing the normal quests after the festival.  I was able to get a 3-star water banshee, which I quickly evolved to a deep-sea banshee which proved to be quite useful here.

Note that on stage 5, I fought an Ifrit, not an Ifrit+ (if that makes any difference).  It fell pretty quickly.

Given I had 75% reduction to fire and water damage going into this, the enemies in stage 6 and 7 still hit me hard (8121 and 9894 respectively; multiply that by 4 for base damage!).

Team:
Deep-Sea Banshee (leader)
Erinyes++
Pastor Carl
Charmer++
Night Witch Catherine
Deep-Sea Banshee (ally)

If you can't go with double banshee either have around 20k HP and decent RCR, or have a 40%/70% life survival card.