Heracles was sent to capture Cerberus as one of his twelve labors.
Changelings first appear in A Canterlot Wedding - Part 2 and are the minions of Queen Chrysalis.
According to Twilight, Cerberus is responsible for guarding the gates of Tartarus and that, with Cerberus away from Tartarus, the "ancient evil creatures" imprisoned there could escape and destroy Equestria.
Ahuizotl wears golden colored jewelry, such as a necklace, a single ear ring, and three bracelets, one for each foreleg, and one around his tail's wrist. Breezies are first introduced in It Ain't Easy Being Breezies, a group of which Fluttershy and her friends assist in migrating home.My Little Pony Friendship is Magic hosts an array of creatures that have a counterpart in both mythology and fantasy, some of which are far more removed from their realistic counterpart than usual animals.A few creatures, like dragons and Diamond Dogs, have speaking roles and display sapience when interacting with the protagonists.Apple Bloom encounters the monster in the Flame Geyser Swamp on her way to deliver apple pies to a faraway town for Applejack.The chimera attacks Apple Bloom with intent of eating her and the pies, but Applejack saves her and tames the monster with a snake-charming flute, a lion tamer's chair, and a hunk of ricotta cheese.In Greek mythology, a centaur is a creature that has the upper body of a humanoid conjoined to the body of a horse.