Legion Remix introduces four new basilisk mounts that you can add to your Collection!
How to Get Them?
You can simply purchase them from Hemet Nesingwary at the Infinite Bazaar located south of Dalaran. They are available in the first phase of Legion Remix and cost 10,000 
Bronze each.
You can find a full list of rewards available in Legion Remix here.
Reins of the Leystone Basilisk
This beautiful basilisk is often hunted for the magical properties of its organs. Fortunately for the basilisk, its connection to ley lines gives it a prescient sense of approaching predators.
Reins of the Felslate Basilisk
Once common on the Broken Isles, felslate basilisks have been hunted heavily by miners seeking their precious skins.
Reins of the Slag Basilisk
Originally dwelling deep underground where their diet consisted of obsidian and basalt, the slag basilisks surfaced when their homes were disturbed by the Legion.
Reins of the Aquamarine Basilisk
Despite their name, aquamarine basilisks feast on a variety of coastal crystals and oceanic rocks.
