Firebird

Why these tropes fit

A Roman dragon-shifter general and a captive Dacian witch navigate a conqueror-and-captured dynamic that slowly evolves through enemies-to-lovers tension into a fated bond transcending imperial law. Their slow-burn attraction simmers into high-heat passion as they conspire against a mad emperor amid dragon deathriders, with prophecy hinging on the heroine. The relationship is darkened by slavery, battlefield violence, and the ever-present threat of heartbreak or death.

Evidence from the source

• Dragon Romance: “he instinctively shifts into his fierce dragon form to save her” source
• Enemies to Lovers: “full of enemies-to-lovers steam” source
• Prophecy: “A witch prophesied to save them all” source
• Slow Burn: “Their slow burn is the kind that sets your soul on simmer and then suddenly boils over” source
• High Heat: “Seriously intense and steamy romance” source
• Strong Heroine: “Fierce and powerful, twenty-one-year old Malina has survived the loss of her family and is determined to fight” source

Metadata source: Google Books. Quotes are used only to verify the tags.