Frostbitten Buckler

Alter: This icy shield has 3 charges and regains all of them each day at dawn. When a creature you can see hits you with a melee attack, you can expend 1 charge as a reaction to deal 2d4 cold damage to the attacking creature, and gain temporary HP equal to the cold damage for 1 minute.

Attunement: yes (?)
Rarity: Uncommon
Type: Shield
Cost: 135gp

Griffons Saddlebag, Vol 1