House of the Dragon's third season began with victory for Rhaenyra Targaryen (Emma D’Arcy)... but not satisfaction. In Sunday’s season finale, Rhaenyra finally set out to do something about that. So she busted out an outfit unlike any we’ve seen her wear before, an intricate black-and-red armor infused with dragon characteristics. For House of the Dragon's Emmy-nominated costume designer Caroline McCall, this incredible costume represents the culmination of Rhaenyra’s season-long journey. Phoebe Campbell in 'House of the Dragon'While Aegon was in hiding, Rhaenyra’s main opponent for Season 3 has been Lord Ormund Hightower (James Norton).