All that said, that does change some things if Sylph won't be around (at least at first). That's a few Fellowships that need to be adjusted accordingly.

Luckily, I think these are pretty simple to alleviate.

Shieldwing's Fellowship involving Sylph is easily exchanged for a second with Fellwing. Or I could potentially rework one of them to apply to Skobeloff so that I have one for each party member.

Skobeloff's Fellowship regarding trust and confidence can easily be applied to another. Shieldwing would match this one really well. Fellwing might work pretty well too.

For Shieldwing, it could be that Skobeloff has probably tricked or lied to Shieldwing multiple times so that he could either get out of something or just to make Shieldwing look silly as a joke. Most dragons in his position would then consider Skobeloff unreliable, like a boy crying wolf. But then one time, Skobeloff gets in actual, dangerous trouble at some point. He realizes he can't talk his way out of it (maybe he got on the bad side of a bad dragon or two that demand something from him), and he doesn't want to get the clutch dragged into it. But then he gets the idea to ask Shieldwing for backup since he's "the strong Brynback" and would be able to handle himself and maybe even resolve the whole thing.

When he goes to ask Shieldwing for his help, Shieldwing initially agrees, but an older Brynback dragon scolds the two of them, saying that Wroughtwing's descendant shouldn't be made a fool of by such obvious lies so many times. Maybe Skobeloff believes that Shieldwing will listen to his superior and runs off before he gets an answer. But then, when the time comes, Shieldwing shows up to support him. When questioned about why, Shieldwing would then say he'd rather be made the butt of a joke than run the risk of abandoning a clutchmate when they need him. He's strong enough to handle being a victim of a prank, but would forever regret it if he did nothing while there was something he could have done to help.

And then finally, Fellwing's Fellowship regarding the most knowledgeable member of the clutch. That definitely won't be Shieldwing, who struggles with that on a daily basis. So that would leave either Skobeloff or Stargaze; whichever one of those two would be most likely to be the most knowledgeable. I presume it to be the Orphan who has outside experience, but that's something I should leave to you two, I suppose. xD