Arrow of Dragon Slaying
Rare magic ammunition (arrow)
Property: When you use this arrow as ammunition for an attack using a bow, you gain a +3 bonus to the attack roll and the damage roll. If you hit a dragon with an attack using this arrow, the dragon must make a DC 17 Constitution saving throw. The dragon takes 6d10 extra damage on a failed save, or half the extra damage on a successful save.
Sigils of anathema twist around this arrow’s shaft. The arrowhead is made from the fused scales and teeth of a reptilian monster, while the fletching is stiff, coarse, and black. If the arrow of dragon slaying is fitted to a bowstring, the sigils blaze with fell light and the arrow emits a sound like a tolling bell of doom.