Bilbo's Magic Ring
The Hobbit: On the Doorstep#19 (x1)
Treasure
[0]
Artifact.   Item.   Ring.  

Attach to Bilbo Baggins.

Action: Exhaust Bilbo's Magic Ring and raise your threat by 1 to gain 1 resource. (Limit once per round.)

Response: After Bilbo Baggins exhausts to defend an attack, exhaust Bilbo's Magic Ring and raise your threat by 3 to cancel all damage from this attack.