Aegis

This shield is made of silver and emblazoned with the face of a pit fiend. While wielding the shield the user can expend a reaction when taking fire damage to reduce the damage taken by 1d10. Holds a maximum of 4 charges, regains 1d4 charges at dawn. The wielder can use a action to spend 2 charges to cast the spell Fear (DC16). 

Shields require the Utilize action to Don or Doff. You gain the Armor Class benefit of a Shield only if you have training with it.