1. You will obtain the "Glory of the icecrown raider (25 player)" achievement in 2 weeks.
2. Your character's level should be 80+. 
3. You need to provide your account.
4. ETA : 1-2 CDs

Achievement mounts are rewarded to a character for completing certain Achievement. Once the Achievement is complete, the mount will be sended to the character.

Raised from the chilling depths of Icecrown, Frostbrood Vanquishers are considered among the fiercest and most relentless of all frost wyrms.

Riding Requirements:

Level 70
Artisan (300) Riding
Source:

Achievement: Glory of the Icecrown Raider (25 player)
Notes:

For the 10-player reward equivalent, see the Bloodbathed Frostbrood Vanquisher.
Travel Mode:

Ground (+60% or +100% speed)
Flying (+150%, +280% or +310% speed)
Speed depends on your riding skill.

Reins of the Icebound Frostbrood Vanquisher::