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Why Nova Terron Chose Malvaron as the Mysticons' Solon?
I would have guessed that Nova Terron would have picked one of the higher-level astromancers to be the Mysticons' Solon after Tazma was revealed to be evil, but he picked Malvaron instead. While it was a better choice for the audience, I wondered what he was thinking.
It's clear that he prefers hard work and responsibility, which is why he initially chose Tazma (who worked hard and seemed to follow the Astromancer's rules) over Malvaron (who was more laid-back and fun-loving). This is supported by how, despite strong natural talents, it was Tazma who was a higher-ranking Astromancer. And while it could be age, since Tazma is older, that still would support Nova Terron choosing another Solon. After all, both Gandobi and Quazarla are older (there are other Astromancers, but i imagine that the show would pick a named Astromancer, not a background one), so there were options. The age theory does fall a bit flat though, as Proxima was a high-level Astromancer at 15, and later became Starmistress.
I think choosing Malvaron wasn't something Nova Terron particularly wanted to do, but felt as though he had to. After Tazma was revealed to be working with Dreadbane, he likely had concerns of the Mysticons not trusting any of the Astromancers and not wanting to work with them. Zarya's initial trust issues could further hint at this, as even when the Mysticons were embracing training, it was more because of Tazma, not the other Astromancers. While this may not have happened, as Arkayna said the Astromancers could save her parents, none of the Astromancers knew that the Mysticons had a personal reason to save the King and Queen. Because of this, they may not see saving the king and queen as something that would make the Mysticons want to stay. If Nova Terron wanted the Mysticons to work with the Astromancers, then compromises might have to be made. He knew that the Mysticons trusted Malvaron (initially saying he should be the solon), so he let Malvaron be the solon.
This is tested in "The Astromancer Job", when Nova Terron briefly takes over. However, I think his arrogance could have played a role. Now that the Mysticons messed up (losing a piece of the Codex), he assumes that the Mysticons would be more willing to accept a different Solon-one that aligned with the Astomancer's values of hard work (himself). And as Malvaron "failed", Nova Terron would further think that Malvaron wasn't suited to be the solon.
In short, I don't think Nova Terron particularly wanted Malvaron to be the solon. But when there was a chance of the Mysticons not working with the Astromancers, then Nova Terron was willing to compromise.
Nova Terron: Do you swear to tell the truth, the whole truth, and nothing but the truth?
Tazma: No.
Nova Terron: [covers mic] What do I do?
Malvaron: (confused by Yaga & Nova greeting each other) You two know each other?
Zorlon: Ha, didn’t you know, Malvaron? (Teasingly) Our Star Master has a thing for demi gods.
Nova: I don’t recall asking for your opinion, Zorlon!
Nova Terron - Star Master by herebewonder
(this post, now in photo format)
Proxima Becoming Starmistress Imagine
Proxima went to the Star Chamber, where Nova Terron was waiting for her. She was worried about what the Starmaster would say. After all, while Nova Terron did seem to forgive her, she did turn the Astromancers into undead spectromancers and became a major threat to the entire realm. She was expecting to be asked to leave the Astromancers, and even had everything packed, just in case.
"You asked to see me, Starmaster?" Proxima asked.
"Yes," Nova Terron said. "Geraldine and I rekindled our relationship, and I would like to explore different dimensions with her. Because of that, I will need a replacement for my position as Head Astromancer."
"That's exciting," Proxima said. "But with all due respect, why are you telling me this, and not the other Astromancers? Do they know yet?"
"I called you here first because I want you to be my replacement," Nova Terron said.
Proxima couldn't believe what she was hearing. "But I..."
Nova Terron raised his hand, signaling for Proxima to stop. "I know you have gone down a dark path. But you are intelligent and responsible, and when you were free from the mask's influence, you did what you could to make things right. You will be a great Starmistress, if you accept."
Proxima couldn't believe it. There was no way someone like her, who betrayed the Astromancers, could ever lead them. And even if she could forgive herself, she was still too young. She was about to reject the offer, believing someone else would be better suited for the role, but then she thought of the Mysticons. They were around her age, and Piper even younger, but they still faced evil that threatened the realm, even with their own struggles. And, as Starmistress, she would be in a perfect position to help the Mysticons, as well as the realm.
"Thank you, Starmaster," Proxima said. "I accept."
Nova Terron Not Recognizing Proxima
I was making a random headcanon list, and I thought about how Nova Terron interacted with Proxima as a toddler, thinking she's Zarya, but didn't know her name in the show. However, I have a reason for that, so I thought I'd explore it.
Mrs. Sparklebottom stopped Nova Terron from visiting after the first time (when the switch took place). So, Nova Terron never got a chance to see the "princess" grow up. However, he still felt bad about what happened, so he decided to adopt an orphan from Mrs. Sparklebottom's sanctuary. However, as he was busy with being the Head Astromancer, and wouldn't be in charge of supervising the students (though he played a role in it), he pitched the idea to the other Astromancers, who agreed. So, an astromancer adopted Proxima. As Nova Terron didn't recognize her after all this time, he saw her as another student.