Petrified grung egg

(Requires attunement by spellcaster)
While this egg is on your person, you can use
an action to speakits Command Word and
regain one expended spell slot. If the expended
slot is of 4th Level or higher, the new slot
is 3rd Level. Once you have used the pearl,
it can't be used again until the next dawn.
Also grants resistance to poison damage