Dragons are a crucial part of House of the Dragon's storytelling, and the upcoming Season 2 is due to add 5 more to the mix. Vhagar, Sunfyre, Syrax, and Moondancer appear in House of the Dragon's Official Dueling Trailers; it's not a big secret that Vermithor, Seasmoke, and Meleys have roles to play in the upcoming war between kin.