Staff of Withering

Staff, weapon, major, rare (requires attunement by a cleric, druid, or warlock)

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

This staff has 3 charges and regains 1d3 expended charges daily at dawn.

The staff can be wielded as a magic quarterstaff. On a hit, it deals damage as a normal quarterstaff, and you can expend 1 charge to deal an extra 2d10 necrotic damage to the target. In addition, the target must succeed on a DC 15 Constitution saving throw or have disadvantage for 1 hour on any ability check or saving throw that uses Strength or Constitution.

Source: Dungeon Master’s Guide p. 205. Available in the SRD