Crystal of Peace (5e Equipment)

Wondrous Item, very rare (requires attunement)

The crystal of peace is a shard of divinity from the upper planes. It is a crystal shard that varies in color depending on the deity that administered it, having the symbol of that deity inside or none at all. This results in the crystal being perfectly clear. It hangs from a length of cord as a pendant.
While you wear the crystal, your Wisdom score increases by 2, to a maximum of 24. Additionally, the crystal has 3 charges. As an action, you can expend a charge to cast the calm emotions spell. The crystal regains 1 expended charge daily at dawn.
The crystal can be used as a holy symbol if it is from your deity or if it's clear, in which case the crystal changes to represent your deity, becoming clear again if you end attunement. Crystals that already have a symbol in them on their attunement stay the same when it ends.