Sveta

Stella is a playable character of Golden Sun: Dark Dawn. Stella is a Jupiter Adept who is the first playable demi-human in the Golden Sun series. It is unknown whether she has any relation with the only known demi-humans in the GBA games, the werewolves of Garoh, but she is described as of a man-beast race who mutated after the rising of the Golden Sun. Her senses are highly enhanced, and she is able to detect special smells; more impressively, she also possesses the ability to read minds, and can perceive Psynergy in a special way.

In battle, Stella fights with her hands and feet. Her weapons are a series of gauntlets that are only equippable by her (and are the only weapon she can equip). She can also use Jupiter Psynergy, but her most unique feature is the ability to transform into a beast form that greatly boosts her statistics (specifically, Attack, Defense and her maximum HP, though her maximum PP is lowered) and changes the options available to her in battle. For instance, while she becomes able to physically attack more than one target and defend for more than one Adept, her Psynergy set changes and she becomes unable to unleash Djinn. Furthermore, for each turn that she remains transformed, one of her Djinni is set to Recovery when she reverts.

She also has a brother who acts as a reluctant antagonist

Trivia

 * Stella is the first playable Adept that does not equip and use conventional weapons, and is the first physically-attacking Jupiter Adept, along with the first physically-based female character.
 * Stella is extremely similar to Laguz units in Fire Emblem: Path of Radiance and Fire Emblem: Radiant Dawn, in that she is typically in a humanlike form with some features of the animal she represents, but fights with natural physical strength by transforming into a full-bodied form of that animal.