You have resistance to psychic damage and you can cast the minor illusion cantrip at-will while you hold this glassy staff that changes colors each time you see it.

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: delude (new) (1 charge), major image (3 charges), phantasmal force (2 charges), or silent image (1 charge).

The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff vanishes and is destroyed, but it is seamlessly replaced by an identical-looking staff that shatters into glass shards the next time it is used by anyone.

Notes: Resistance: Psychic, Bard, Sorcerer, Warlock, or Wizard, Control, Combat, Deception, Warding