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Appearance: Blue with red stripes. Not trying to blend in. Bright colors warn rival dragons not to mess with her. Heavy neck plates and no horns. Big spikes on the tail. She doesn't do dominance fights with horns. She fights mean.
Diet: Hunts other dragons—especially fire breathers. Uses her freezing breath to slow or stun them. Trusts her neck plates to protect her long enough for the kill. Also grazes on felandaris. Maybe stuff her body uses to make the cold hurts her stomach.
Behavior: No hoard. Doesn't fight fair. Kills her own kind. No wonder the Dragon King liked her. Good that there's one less of her in the world.