Azagar's Artifacts: Sabre of the Horselords

From the Publisher:

Azagar’s Artifacts continues with the Sabre of the Horse lords, a mighty heroic-tier weapon imbued with the spirit and skill of a fierce, nomadic people unmatched in mounted combat. The Sabre grants many powerful boons to those who wage war from the back of a charging mount, be it a humble horse or soaring griffin.

Azagar’s Artifacts: Sabre of the Horselords features the following new material for your 4E game:

Introduction by Azagar
Sabre of the Horselords, a new heroic-tier artifact
A new magic weapon property, doomrider
Two adventure hooks to help you introduce the Sabre of the Horselords to your campaign
A handy reference sheet for players lucky enough to wield the Sabre of the Horselords