This is one of the Illustrations appearing in the recent "RIFTS: Black Market" published by Palladiumbooks.
The Unicorn robot steed is manufactured by Bandito Arms and the steed is a Warhorse unit based off of the legendary equine. It has built in cannons in the nasal cavity and its horn is a double edged silver vibro blade for slaying the supernatural along with its hooves. The underbelly has vector thrusters for assisting leaps. In this illustration