Nevertoken

A Nevertoken holds 7 charges. It regains 1d6 + 1
expended charges daily at dawn. If you expend
the token's last charge, roll a d20. On a 1, the
token bursts into flame and crumbles to dust
within seconds.
While holding the token, you can use an action
to expend some of its charges to cast one of the
known spells it contains.