Night Hunter is one of the three skins released in one part of the Moonlight Festival offer. It could be purchased as part of an item deal in late October 2017.
Night Hunter could be purchased for $19.99 in a limited time deal that included the Wendigo skin and either 50000 coins (Browser) or 1800 DNA (Mobile). It was not available for individual purchase and may not be available for purchase in the future.
Details of this skin can vary depending on location, platform or time.
Note: The Moonlight Festival offer was released again for a limited time in mid September 2021. The item deal with Night Hunter remained the same for this release.