puzzled wrote:It's kind of hard to say without looking at all your equipment and setup, which I'm too lazy to do.
General advice:
(some good advice, snipped)
I would modify puzzled's advice. If you are not hitting, don't waste rounds with Random / Striker / Slasher. Instead, use Random's Laxius Punishment, Wendy's Laxius Rocket and Luci's Royal Combo, and Sarah to heal.
Luci's combo is crucial - it gives +Obsidion Skin to everyone and hits Hondler with good spells, twice.
Also, use the items in the computer shop (near the access card computer) to boost your PDF very high.
Use all permanent and temporary stat boosts before the fight. Get Wendala and Sarah to cast Legend Slayer on themselves (Sarah via Mage Guild fusion, Wendala via a book), Luci should cast Laxius Boost and double her HP before the fight.
I had all characters with ~1500 HP, so they can take 2-3 hits easily from Hondler without bothering about healing. As far as healing goes, my strategy was to use Sarah as the healer, and use holy water or other item that does 100% HP. If Sarah dies, Random uses one round to bring Sarah back. Never use Luci for healing or protecting - she does the most damage to Hondler, so she is strictly attack. Besides with 600+ PDF and 2000+ HP (after Laxius Boost), she can take a few hits.