Avenging Arrow

"Forgive the transgression. Punish the deception. That is justice with virtue." - Aurelia, Exemplar of Justice

A silver ring in the shape of an arrow wrapping around the finger. One small diamond is set in the arrowhead of the ring, giving off a glow when a charge is available. 

This ring has 1 charge. 1 additional charge is gained with the attuned player's level at level 10, 15, and 20. The Avenging Arrow regains 1d3 expended charges daily at dawn. 

The attuned player may use their reaction to an enemy that they can see successfully dealing damage to anyone or anything and activate the ring to expend 1 of its charges, causing that enemy to take damage (piercing) equal to the sum of all damage dealt by all creatures that the attuned player can see for the entire previous round (this turn and each turn before it up until this enemy's last turn).

If the enemy successfully reduced a friendly creature to 0 hitpoints during this turn, that enemy must also make a Constitution Save with DC equal to the attuned player's level. On a failed save, the enemy is reduced to 0 hitpoints. 

To attune, the ring must be worn for 2 dawns. To activate the ring, clench the ringed fist and then point at the desired enemy. 

Notes: member of the Boros Legion, Damage, Combat, Jewelry