Board Thread:Lore Discussion/@comment-176.63.28.164-20151218081504/@comment-6881629-20151218094452

The only information on the Ebony Warrior is what you probably already know, he' a great Redguard warrior who want to go to Sovngarde but no ones worth fighting anymore and no one can defeat him. So he seeks out the Last Dragonborn.

"I have done all that can be done. There is nothing left. No quests to be undertaken. No villains to be slain. No challenges to face. Except for you. You are my last challenge. Only you can send me to Sovngarde with honor."

I think he's really only there as a challenge for people who reached the old level caps (he's built a lot more like a player character than other npc's you might fight).