Unstable Compound Bow (5e Equipment)

Weapon (longbow), rare (requires attunement)

A rather strange bow, mostly made of glass. Inside these glass frames is a strange, pulsating black material, which leaks into the string and manifests whole arrows. The quality of these arrows is questionable, however.
You do not need ammunition to make attacks with this weapon, as the bow manifests arrows itself, which disappear after being fired.
When you make an attack with the unstable compound bow, you may roll two d10s. These are your attack and damage bonuses for this attack, instead of what you would normally use.