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

Obtain an epic Brewfest mount.

Obtain a Winterspring Frosaber.

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

Obtain the Ashes of Al'ar from Kael'thas Sunstrider in Tempest Keep.

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

Obtain the Fiery Warhorse's Reins from Attumen the Huntsman in Karazhan.

Obtain the Swift Razzashi Raptor from Bloodlord Mandokir in Zul'Gurub.

Obtain the Deathcharger's Reins from Baron Rivendare in Stratholme.

Obtain a Red Qiraji Resonating Crystal.