Obtain Invincible from Arthas in Icecrown Citadel.

Obtain the X-45 Heartbreaker from Apothecary Hummel in Shadowfang Keep during Love is in the Air.

Obtain the Swift White Hawkstrider from Kael'thas Sunstrider in Magister's Terrace.

Obtain The Horseman's Reins from The Headless Horseman in the Scarlet Monastery during Hallow's End.

Obtain the Reins of the Raven Lord from Anzu in Sethekk Halls.

Obtain an epic Brewfest mount.

Obtain Mimiron's Head from 25-player Yogg-Saron with no Keepers assisting you.