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

Obtain Invincible from Arthas in Icecrown Citadel.

In the Trial of the Grand Crusader, reach a Tribute Chest with 50 attempts remaining and without allowing any raid member to die during any of the boss encounters in 25-player mode.

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 a Grand Black War Mammoth.

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