Nyx Lotus

Wondrous item, very rare (requires attunement)

Price: 20,000-70,000 gp | high sentimentality

This lotus can hold up to 9 charges and starts with all charges expended when you first attune to it. Once a day, you can spend 10 minutes praying to a god. If the god is pleased with you, the lotus regains 1d4 expended charges. Alternatively, you may sacrifice to the god instead of praying, following the appropriate ritual and giving an appropriate offering, to regain 1d8 + 1 expended charges. While you’re carrying the lotus, you can use an action to target yourself to regain an expended spell slot, expending a number of charges from the lotus equal to the level of the spell slot.

Paid

With the lotus in hand, you can use an action to destroy it and regain an expanded spell slot of any level, regardless how many charges the lotus is holding.

Overpaid

You can choose a creature other than yourself as the target of your action when you use the lotus.

Source: The Gray Merchant of Asphodel