Zargothrax isn't evil in 1993
With Die with a Sword in my hand releasing and having Zargothrax helping Angus V this made me wonder, why was he doing this and why would they work with him? Is he just helping out of spite that Hootsman was possessed or what? Well I have a theory.
Angus II uses the amulet of justice on Zargothrax. In Die with a sword in my hand (yes I know videos are not fully canon) he struggles to cast magic it is shown and I believe this is because his pact with Kor-Virliath was broken.
I believe we will have this mentioned more in the songs Pax Galactic and Demonic Devotion. It is described on the album's store page that "majestic melodies echo through the derelict halls of an abandoned spaceship, as Angus is guided to an unexpected long-lost ally" Now the important part is unexpected. While it could just mean someone who was an ally already and just wasn't expected it could also mean someone you wouldn't expect to be an ally. And with the mention of "long-lost" it doesn't need to mean lost as in location, it could be referring to how Zargothrax was corrupted for centuries, or in other words lost.
The way I think Demonic Devotion plays into it is the description reads: "the song’s protagonist, long trapped in his own mind, trying to reconcile with the destruction in his wake" Now the thing I noted was it just says the song's protagonist and trying to reconcile. Hootsman could be a candidate here but he is still corrupted and I think that he would be unable to try and reconcile with what is happening. But if Zargothrax was uncorrupted he would probably feel guilty after everything that has happened.
Anyways I am done rambling