Aeryon Targaryen "Bright Flame"

Here are the key traits:

Narcissism and megalomania Eirion genuinely believed in his exceptionalism as a Targaryen. He considered himself above all by right of blood, and his cruelty was seen as a manifestation of strength befitting a dragon's lineage. It is symbolic that he drank wild fire, hoping to become a dragon: the line between greatness and madness had completely blurred for him.

Sadism without empathy He tortured animals (the episode with the cat in "The Hedge Knight" is telling). He humiliated and crippled the weak without feeling remorse. For him, violence was not a tool but a means of self-assertion and a source of pleasure. Marked contempt for the "lower classes" Eirion not only ignored commoners — he actively demonstrated that they were not human to him. This reflects a deep internal need for hierarchy, where he is at the top.

Inability for reflection Not once in the text does Eirion doubt himself or reconsider his behavior. Even his exile to Lys did not change him — he continued to live in the same manner. This indicates rigidity of mind: external consequences do not become internal experiences.

Compensation through cruelty Likely, behind his aggression lay a need to prove that he was a "true Targaryen." His brother Daeron was a drunkard, his brother Aemon was a maester, and Eirion perhaps felt that it was he who must embody the "dragon" essence of the house. But instead of greatness, only cruelty emerged.

Verdict The image of Eirion is a portrait of malignant narcissism with sadistic traits: grandiose self-esteem, lack of empathy, need for dominance, and inability for self-correction. Martin uses him to show that "dragon blood" without humanity is simply cruelty cloaked in a crown.