Zavilia is a dragon capable of shapeshifting, sizeshifting, and several kinds of magic.

Zavilia’s normal form is that of a pink dragoness with purple eyes. She has two pairs of horns, one long and straight, continuing from the back of her head, and another, sweeping back from the sides. There’s also some webbing/fins on the sides of her head.
She has several other appearances, generally themed after what she’s doing.
Her ‘dark’ form is nearly pitch black, blending in with dark skies and shadows. This form is accentuated by her Shadow magic, to ensure she can remain stealthy at all times. Her appearance becomes somewhat sleeker and more ‘streamlined’, as it were.
Her ‘elegant’ form is based on her pink form, however she now has feathered wings, another set of horns in a similar manner to the top pair of horns.
Her two top pairs of horns contain a web of ice jewelry between them, and she also wears an icy blue veil hiding her face below her eyes. She may also have other clothing when in this form, all constructed from ice at its core, but enhanced to never melt and to take on colors and feels that aren’t possible with normal ice.
Zavilia’s primary elements consist of Shadow, Ice, and Arcane. She can still use other elements as well, though at somewhat reduced efficiency.
She also has a unique trait: she gains the powers of anything and anyone she devours or completely controls, such as eating another dragon and gaining all of that dragon’s magic and abilities as her own, or subjugating someone completely.
The process isn’t exactly additive. Depending on the kind of power, it could easily be multiplicative, like it is with her primary elements, physical abilities, and mental.
This element has two applications. The primary one has to do with darkness and shadows, manipulation of both, and even summoning shades that can carry out tasks.
The secondary one is about manipulating minds. Creating phantom limbs, falsifying memories, adjusting one’s emotions or feelings towards someone, et cetera. It is a complex and dangerous magic.
The manipulation of ice and temperature. Paired with being a dragon, she can control temperature towards heat and cold, rather than just cold. She can also make enhanced ice, which can be many things. Ice which doesn’t freeze, warm ice, et cetera.
Arcane magic is generally telekinesis, telepathy, basic shields, and that kind of stuff. Any magic that doesn’t really have an associated element.