Karstaag (Bloodmoon)

 is a creature found in.

Karstaag is a unique Frost Giant who lives on the isle of Solstheim. He and the Skaal tribe have lived in peace for many years, but at the time the Nerevarine learns of this, the Skaal have heard nothing from the giant for some time. He resides within Castle Karstaag with the Riekling, who serve him as their king.

The Nerevarine will encounter Karstaag in the Huntsman's Hall deep within the Mortrag Glacier during the quest "Hircine's Hunt". He boasts high health and is highly resistant to frost magic.

Location
Castle Karstaag