Martyr's Ring (3.5e Equipment)
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This ring is silver, with a blood-red ruby at the centre. Some inscription is written around the ruby. In Celestial, this reads "For I shall risk death for the good of others"
It appears as a Ring of Protection +5 if analyzed by magical means. In fact, this is true. However, it also has a hidden effect. Every time a friend (DM's discretion, anyone in the party by default), within 10 squares, is attacked, then the attack is transferred onto the wearer. If the wearer is hit, all damage goes to him.
While easily deadly, this may be as beneficial as baneful.