Unicorns were a species of supernatural creatures. It resembled horses with a single horn on their head.
These creatures did not exist outside popular mythology until Clem wrote in the Slayer Handbook that they were real, and an unicorn simply appeared in the street. He did so as a favor to Harmony Kendall, who had an interest in collecting unicorn themed items. Also before its existence, the creature had appeared in Andrew Wells' dream of being as a god.
- "The Initiative" (only in a poster)
- "Real Me" (only as figurines)
- "Judgment" (only as a figurine)
- "Storyteller" (only in a dream)
- "Harm's Way" (only in stickers)
- "Shells" (only as figurines)
- Harmonic Divergence (only as figurines)
- In Perfect Harmony (only as figurines)
- Day Off (or Harmony In My Head)
- In Pieces on the Ground, Part One