Staff of Twisted Prophecy

This darkwood staff is adorned with swirling purple and pink sigils that shift when held. While wielding the Staff of Twisted Prophecy, you can use a bonus action to expend one of your spell slots to manipulate fate. Choose one ability check, attack roll, or saving throw made by a creature you can see within 30 feet. You can roll an additional d4 and add the number rolled to one of those rolls. Once you use this property, you can’t use it again until you finish a short or long rest.