Pipes of Powerful Discord
Wondrous item (any woodwind instrument), uncommon (requires attunement)
You must be proficient with a wind instrument to use this item. This instrument has 3 charges. You can spend 1 charge as an Action to cast the thunderwave spell. You can also spend 2 charges to cast the shatter spell. As long as you play your instrument again before dawn (out of combat), it replenishes all of its spent charges. Otherwise, it replenishes 1d4-1 charges at dawn.