Glacial Tidestorm

Though she commands a variety of magical powers, Jaina has always been most proficient at summoning powerful elementals of water and ice.

Riding Requirements:

This mount is available to all eligible characters on your account.
Level 10
Apprentice Riding

Source:

Lady Jaina Proudmoore in Battle of Dazar'alor (Mythic Raid).
The Black Market Auction House (rarely)

Notes:

This new water element mount drops from the Mythic-only Jaina Proudmoore encounter in the Battle of Dazar'alor raid. Note that the images here are still missing some of their effects.

Introduced in:

Patch 8.1

Travel Mode:

Ground (+60% or +100% speed)

Speed depends on your riding skill.

More info on Wowhead:

Glacial Tidestorm taught by Glacial Tidestorm