|Release Date||May 10th, 2016|
The Nightshimmer Alicorn was released as part of the 2016 Birthday Party event on May 10th, 2016. An egg of this color could randomly be brought back by horses that had been sent to explore portals to the Twilight Temple. This color cannot be passed down to offspring.
- This color was accidentally released ahead of schedule from Santa Stubby Butt's bag in December 2016. Affected horses were turned into rare V1 unicorns.