When it comes to difficulty, it really depends on how well your party is equipped, what you're up against, and how you manage it

Maybe, a magic heavy party with 3 Sorcerers and a Druid

I hope you enjoy it as much as I did!Spoiler: I strongly believe the most powerful party is Knight, Sorcerer, Sorcerer, Sorcerer with one sorcerer each learning Fire, Water and Air, and then all three going ape in Dark Magic and becoming Shrapmetal wizards.