Staff of Frost

Staff, weapon, major, very rare (requires attunement by a druid, sorcerer, warlock, or wizard)

• Damage:
  • One-handed: 1d6 bludgeoning
  • Two-handed: 1d8 bludgeoning
• Properties: Versatile
• Weight: 4.0 lbs.

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 (4 charges).

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.

Source: Dungeon Master’s Guide p. 202. Available in the SRD