Bridle of Flame
This black leather bridle decorated with a flame motif grants healing power and can transform your mount into a fiery steed.
Mount 45,000 gp
When you spend a healing surge to regain hit points, your mount also regains hit points as if it had spent a healing surge.
Power (Fire, Polymorph) Daily (Minor Action)
Your mount transforms into a creature of wind and flame. The mount gains resist 20 fire. Any creature other than you that starts its turn on or adjacent to the mount takes 2d6 fire damage. Your mount retains this form until the end of the encounter, until you end the power as a free action, or until you are no longer mounted on it.
Published in Adventurer's Vault 2, page(s) 110.