A member of the
Legion of Super Pets.
Biron is the real name of Comet the Super Horse. Originally a
centaur in ancient Greece, Biron lived the "normal" life of
a half-man/half-horse until the day that he rescued the legendary
sorceress Circe from an enemy. In gratitude for his help, Circe
granted Biron a single wish. Biron, obviously tired of straddling the
line between humanity and equinity, took the bit in his mouth and
requested to be turned fully human. Circe complied, but an unknown enemy
made her spell go awry, turning Biron into a horse. Circe was able
to allow Biron to change into a human, but because of the vaguaries
of magic, he is only able to do so when a comet is in the sky. Hence,
Biron became known as Comet.
Comet's powers are magically-based, so he does not have the same
weaknesses that Kryptonians have to Kryptonite, magic, and the
rays of a red sun. Comet's only power was that he could fly.
Biron occasionally was romantically involved with Supergirl. This only took place
when he was in human form to avoid a Comics Code debacle.
Comet, along with Krypto, Streaky, and Beppo came together to
help the Legion of Super-Heroes. In recognition of their help, the Legion
established them as the Legion of Super Pets.