Which combined artifact is the best?

It might be useful for other people too! Once, when I was playing as Fortress, I took Adeley the Scholar, and he gave me the main Necromancy spell. Then I collected the King of the Undead cloak, and that was it... Victory was mine! It's a rare occurrence, but still...

I had something similar happen to me))))
I was playing as Conflux. Right at the beginning, before the castle, there was a scholar, so I took him, and he had Sorcery. I was a little disappointed at first, but then I bought everything I could from the artifact market and collected the cloak, and I won too!)))