Moondancer

Moondancer belonged to Baela Targaryen, Daemon's daughter by Laena Velaryon and twin sister to Rhaena — a girl who claimed her dragon young and flew her, by every account, with more daring than a beast her size strictly warranted. Where the war's other notable dragons were measured in decades and tons, Moondancer was neither large nor old when the Dance called on her, and for most of the war she saw scouting and courier work rather than the set-piece dragon battles that killed her larger kin.

Her one true battle was also her last, and it was fought against odds that should have killed her outright. When Aegon II flew the crippled, still-healing Sunfyre to Dragonstone to deliver a captured Rhaenyra to a death of his own devising, Baela flung Moondancer at the golden dragon in a fury no one had ordered and few expected a dragon her size to survive. She could not kill him — Sunfyre was grievously wounded but still many times her mass — yet she tore at him badly enough to worsen injuries he never fully recovered from, and it was that mauling, layered atop Rook's Rest, that is generally credited with finishing what Meleys had started months before. Moondancer went down in the fight; Baela, thrown clear, lived to see the war's end. That a dragon a fraction of Sunfyre's size could hurt him at all remained, long after, one of the Dance's stranger footnotes.