Why would Gaster be a Heir of Doom? I think he's more like Heir of Void, forgotten by everyone who knew him. Just like Equius

As I said, those were all old Classpects, before I had my current understanding of them, even. I believe my idea was that he was Doomed by his own Creation? Consumed by whatever he was trying to make, and shattered across Timelines as a result of it.