Snowball Sling

Weapon (sling), rare (requires attunement)

This +1 sling is crafted of bleached white leather, with a cup of braided silver silk. When you hit with the sling, the target takes an additional 1d4 cold damage. As a bonus action, you can conjure a snowball out of thin air rather than using normal ammunition; your snowball deals 2d4 cold damage on a hit. If you score a critical hit with this conjured snowball, it explodes in a snowball swarm (as the spell) centered on the target.

After using this ability, you cannot use it again until you complete a short or long rest.