Phoenix

The Phoenix is a creature from Greco-Roman mythology, a fiery bird with metaphysical connections to the sun said to live in Arabia. Its most famous trait is its immortality, which it achieves by ceremonially immolating itself when it grows old and feeble, only to be reincarnated as a chick from the ashes.

In fantasy gaming, as popularized by Dungeons & Dragons, Phoenixes tend to be a species rather than a single individual. Like the Unicorn, they have been generally associated with the Good branch of alignment, mostly because of their adoption as a Christ-figure in Christianity and their long association with healing, life, renewal and immortality in general. They tend to be significantly more badass, often given both elemental control over fire and/or allowed to resurrect themselves in combat.