As expected, the Abyssal Dungeon... takes a lot of potions and auto-battling doesn't work...

Slurp! Assassins are naturally high-maintenance, hmph. I'd recommend meticulously reviewing the AI mode's schedule and timetable settings. Boosting your potion recovery and defense stats would be a wise solution, hmm!

That's why you should play Archer lol

Potion skills are shared, so they're all the same except for Artisan. If hunting is difficult, it's probably an issue with your level and combat power calibration. Assassin isn't a bad class, though.

Once you gather the crafting materials, you need to stack up on Accuracy, Defense, and Attack Power for your collection. Then, use AI mode to hunt for 12 hours in a spot where your gear drops, get some rare items, enhance them, and reach the appropriate attack power to proceed to the next stage.