Black Cloud Serpent w/ Gold Sheen

There are 2 tameable creatures with this look.

Black Cloud Serpent w/ Gold Sheen
Requires Cloud Serpent Taming.Cloud Serpent Taming
You must learn a special skill to tame Cloud Serpents, which is different to the skill required to tame other Lesser Dragonkin. Pandaren hunters gain the skill automatically, but hunters of other races must learn it from the tome How to School Your Serpent, which may purchased from San Redscale at The Arboretum in The Jade Forest. You require Exalted standing with The Order of the Cloud Serpent to read this tome, but the learned skill is account-wide. You can even purchase and read this tome on a non-hunter character.
Lesser DragonkinLevelLocation
Can Be Tamed
11-61Island Expeditions (Scenario)
This serpent can appear on any island during a Mogu invasion, which is one of a number of possible invasion events that can occur randomly in the middle of an Island Expedition. You may need to run several expeditions before Mogu will show up, and they won't be accompanied by these cloud serpents every time. Sometimes the Mogu are accompanied by Zian-Ti Cloudbreaker cloud serpents, which are black with a red sheen rather than gold.
Can Be Tamed
35Townlong Steppes
This serpent is only accessible when you're on the quest Surprise Attack!. To unlock this once-off quest you have to reach Exalted with Shado-Pan and Revered with Golden Lotus, and then complete the precursor quest, Mogu Incursions.
Lesser DragonkinLevelLocation
Cannot Be Tamed
35Shan'ze Dao, Townlong Steppes
Part of a group of black cloud serpents with various coloured sheens that circle the highest peak of the island.
Level scaling: Most NPCs will scale with the Hunter's level, within the constraints of their level range. Hunters can tame regular NPCs up to 2 levels higher than them, but can only tame elite NPCs of the hunter's level or below.

Matching Mounts

Matching Companion Pets