In folk narratives, Antonio das Morte is the human incarnation or secret identity of this dragon — a fallen or cursed figure who made pacts with death. He is not pure evil, but a tragic antagonist: someone who lost his way and now tests the warrior's resolve.

It sounds like you're referencing a fictional or symbolic character, possibly from Brazilian popular culture, literature, or RPG/folklore contexts — something like "Dragon of Evil against the Holy Warrior, also known as Antonio das Morte" .

If you're looking for a to understand or use this character in a story, game, or ritual context, here's a suggestion: Understanding the Archetype: Dragao.da.Maldade / Antonio das Morte