Mm lots of thoughts on this one.
As a small positive, with the right framing Siobahn could maybe do some proccessing of her sense of control being damaged by Thadeus’s violation given the fidelity of her illusions. Properly calibrating for hurt is hard but the aspect of focusing on biofeedback could do a lot to mitigate some of the latent stress response even if she hasnt gotten any support for reframing and proccessing other aspects of the trauma.
I really do feel like the Brilig and Fae are kind of opposite methods using the same medium for power.
Summary
The Brilig form multiple ubique identities because they are I think closer to their selves in the spirit realm. Their multiple resultant wills able to help them stabily use magic because, partially aided by culture they saw past the illusion of the spirit world being a different place than the physical. Though downside there being the deformations and physical issues,at least they didnt die.
Comparatively I think the Fae went the opposite route define identity instead in physical reality.
Summary
Essentially a strategy of defining the scope of reality and embracing the feedback loops so perfectly that you are aligned with your broader identity. Almost like Transmutation being done so well as to mimic transmogrification. Perhaps the resultant little realm has rules and patterns, all set up and defined, and all have to be followed. There isnt another option. A opposite place to the black desert blurring ones identity and the worlds, where definement is absolute, at the cost of calcification. A place of absolute definition is a bit of a cage after all, cant really exchange or change beyond it.
Relatedly Myrddins wariness of transmogrification would be the ideas being used possibly blurring outside the “box” one is using to define oneself. Go too far and you no longer fit the configuration of yourself that is alive or human in general.
Summary
Though probably way easier to die than become something else. He definitely played around with manipulating aspects of himself with multiple names but I think thats easier in some sense to monitor given its from external groups in a lot of ways. I rather suspect the Naughts and Nulls are parallel results of a similar idea. Ongoing external definitions being used to form their own safe categorical boxes for one who knows how to move from frame of self to frame of self.
I had thoughts on Siobahn boosting her ravens earlier and it seems they are viable for all sorts of things. Actions done by beings in the physical world seem to imprint onto magic. So the ability of birds to orient to home may find a broader merging amongst spirits that are defined in part by being birds simply by repetition and need of such in their life cycles. Its pretty similar to the skin being a barrier for magic but the eyes not so much. There might be useful angles that are similar for say fish or bees but its a really useful thing for her ravens. Especially as both mundane aspects of bonding with them could work well with magical cultivation.
She already has a framework with her sleep spell to distribute a effect amongst her ravens as well as her means of spreading a signal of “herself” amongst them.
Summary
She has good context to act as those same ravens may be asleep. Might be a decent idea to find spots where other wild families/troupes of Ravens may be about. Which the Unsleeping Order may already have helped facilitate by offering food and shelter to them. She could likely aid both the integration of effects into her ravens through Legion and use her ravens to furthermore aid her indirectly on numerous fronts.
There are numerous uses but giving potential spirit guides to aid her followers would be very useful for helping them avoid risk in the spirit realm.
Summary
Cultivating concepts through Legion that could used by her and them. Which may accelerate both the upsides of the Orders practices and give them safety nets for self development. Which is another good boost along the flavor spell for that element of her power.
The ravens themselves might also be quite useful too if her actions of dreaming through them can help make a link. She already is using a ritual of essentially sharing elements of each other. If they are ideated as a part of her as the name, The Raven Queen she may essentially be able to make her ravens “anchors” for coming back out of the spirit world. They may be viable for their own rituals or to be extensions of her in several ways. Which may in turn also be useful for potential freecastings especially anything easily affiliating with the ravens own umwelt as it were. Flight especially may be a good route, and she can even avoid the tragic fate of that previous mage who thought they were a bird. A good asymmetric possibility in many ways.
Another possibility is combining that sensory spell and flight spell with them for spying. And using training and sharing their dreams to form a feedback loop of built concepts around flight and sensing that could aid her spells and allow the ravens enhanced capabilities.
Also as another minor plus the usage of names like this may actually help that curse to not trigger if the Royals mess with The Raven Queen rather than Sebastian. May require a bit of work by Siobahn though.