Blood Ring

 is an item in the.

Properties
Cast When Used:
 * Fortify Health 10−20 pts for 30 secondss on self
 * Fire Shield 10−20 pts for 30 seconds on self
 * Resist Fire 10−20% for 30 seconds on self
 * Resist Magicka 10−20% for 30 seconds on self
 * Dispel 10−20% on self.

The Ring has 5 uses before it needs to be recharged ((Charge/Cost) 920/184 = 5)

Location
The Ring can be found on the corpse of Dagoth Gilvoth after he's killed.