Shortbow of the Spelldrinker

Ammo: arrow

This gilded bow creates hazy illusions of the cosmos when drawn. Attacks made with this magic bow deal an extra 1d4 force damage to any target hit by it. When you see a creature casting a spell within 60 feet of you while holding this bow, you can use your reaction to draw from your own life force and attempt to counter it. When you do, you take 30 force damage, which can't be reduced or prevented in any way, and fire a magical arrow of pure force from the bow toward the creature. If the creature is casting a spell of 5th level or lower, its spell fails and has no effect. In addition, the target must make a DC 16 saving throw, using its spellcasting ability. On a failed save, the creature takes 30 force damage as the magic is ripped from it. On a successful save, the creature takes half as much force damage. Once this property has been used, it can't be used again until you finish a short or long rest.

Ammunition: You can use a weapon that has the ammunition property to make a ranged attack only if you have ammunition to fire from the weapon. Each time you attack with the weapon, you expend one piece of ammunition. The ammunition of a firearm is destroyed upon use. Drawing the ammunition from a quiver, case, or other container is part of the attack (you need a free hand to load a one-handed weapon). At the end of the battle, you can recover half your expended ammunition by taking a minute to search the battlefield. If you use a weapon that has the ammunition property to make a melee attack, you treat the weapon as an improvised weapon (see "Improvised Weapons").

Range: A weapon that can be used to make a ranged attack has a range shown in parentheses after the ammunition or thrown property. The range lists two numbers. The first is the weapon's normal range in feet, and the second indicates the weapon's maximum range. When attacking a target beyond normal range, you have disadvantage on the attack roll. You can't attack a target beyond the weapon's long range.

Two-Handed: This weapon requires two hands when you attack with it.

Proficiency: simple, shortbow Source: The Griffon's Saddlebag: Book Two p. 50 (Third Party), Player's Handbook (2014) p. 149