Buckler of Annealing

This shield has 4 charges and regains 1d4 expended charges daily at dawn. While holding it, as a Reaction to a melee weapon attack that misses you by a result of 1 or 2 lower than your AC, you can spend 1 charge to cast Heat Metal (save DC 14) at the attacker's wielded weapon. Alternatively, you can spend 1 charge as part of a Shove action to cast Heat Metal at the target's worn armor or shield. When casting Heat Metal in this way, its effects last until the start of your next turn and do not require you to maintain Concentration. Creatures made of manufactured metal are eligible targets for this shield's properties, while weapons, armors and shields not made of such, ignore its effects.

Utilize Action to Don or Doff.

Proficiency: shield Source: Zamanora: Ballad of the Witch p. 194 (Homebrew), Player's Handbook p. 144