Staff of Frost
Staff, very rare (requires attunement by a druid, sorcerer, warlock, or wizard)
You have resistance to cold damage while you hold this staff.
The staff has 10 charges. While holding it, you can use an action to expend 1 or more of its charges to cast one of the following spells from it, using your spell save DC: cone of cold
(5 charges), fog cloud
(1 charge), ice storm
(4 charges), or wall of ice
The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff turns to water and is destroyed.