Colossal Slaughterclaw

Only the most stalwart stable masters of Maldraxxus are able to break the will of the colossal slaughterclaws, giving all champions of the Undying Army a fearsome ally in the Shadowlands.

Riding Requirements:

This mount is available to all eligible characters on your account.
Level 10
Apprentice Riding (ground)
Expert Riding (flying)

Source:

Supplies of the Undying Army.

Notes:

There's a small chance of obtaining this mount in a Supplies of the Undying Army chest, which is a 'Paragon'-level reputation reward. To obtain one of these chests you must first reach Exalted reputation with The Undying Army faction in Shadowlands, and then continue performing daily activities for them. Every time you earn 10 000 rep with this faction above Exalted, you'll be eligible to receive another Supplies of the Undying Army chest from Nalcorn Talsen outside the Theater of Pain in Maldraxxus.