In my opinion, the 6th game is the best in the series. The locations are amazing... The Tomb of Varn, the Dungeon of the Fire Spirit, the Castle of Alamos, and of course, the Necromancer's Castle (in my opinion, the most difficult location in the series).
As for the ancient weapons, I saw the damage and discarded them. The first time, swords solved everything. But then... Blasters forever!

Yes, the locations are great! The Necromancer's Castle was really tough, it was indeed difficult.
And the Tomb of Varn is the most beautiful... When I remember those spaces... It's beautiful!
And in general, the geography of the world is excellently done. I, for example, spent a long time looking for the Castle of Alamos until I found that ship to Eel Infested Waters ;).
Regarding the ancient weapons, I saw that they teach an expert and a master of that skill, so I saved up experience points, and when I got the skill, I immediately raised it to level 13-14... :D With the monstrous speed of the blasters (I sometimes made 4 shots per turn !!!), the destruction of everything in the way was predetermined. :D