Shabriri

Speak to Shabriri at Zamor RuinsGrace in the Mountaintops of the GiantsRegion.

Shabriri tells you where to find the Three Fingers for the Lord of Frenzied Flame ending. If you acquire the Flame, you will find Shabriri and Yura's Ronin armor where Shabriri once stood. If you don't wish to acquire the Flame, you can kill Shabriri and take the armor without consequence.