Staff of Dunamancy

Staff of Dunamancy is a wizard staff of gray wood that able to cast a range of dunamantic spells and holds a fraction of possibility,.

Appearance
Staff of Dunamancy made of polished gray wood and bears multiple runes carved along its length.

Properties
The staff has 10 charges and regains 1d6 + 4 expended charges daily at dawn. If the last charge is expend, the player rolls a d20. On a 1, the staff turns into dust and is destroyed. While holding the staff, the attuned wizard can use an action to expend 2 or more of its charges to cast one of the following spells, using your spell save DC and spell attack bonus: Fortune's Favor (2 charges), Pulse Wave (3 charges), or Gravity Sinkhole (4 charges).

If the attuned wizard is holding the staff and fails a saving throw against a spell that targets only them, they can turn the failed save into a successful one. This property can't be used again until the next dawn.