Crown of Atris

Wondrous item, rare (requires attunement) Price: 1,000-10,000 gp | low sentimentality

This immense, gilded crown descends over your eyes but leaves your vision intact. The crown has 4 charges, which are used to fuel the magic it contains. While you wear the crown, you can use an action to expend 1 charge to cast mirror image, provided you also choose 3 foes you can see. If there are fewer than 3 foes present, you instead choose all the foes. For each foe you choose, the DM rolls on the Truths of Atris table to determine how those opponents respond to mirror image.

Truths of Atris

d2Response
1This foe sees through the illusions created by mirror image. You can’t redirect attacks from this foe to a duplicate. This foe attempts to point out your illusions to its allies, so when you’re up against creatures allied with this foe and capable of intelligent strategy, you roll with disadvantage when attempting to change their attack’s target to a duplicate.
2This foe is mesmerized by the illusions created by mirror image. As long as an illusion remains, attacks from this foe always target your duplicate. This foe can’t be convinced by an ally that it’s attacking an illusion. If the crown is reduced to 0 charges, the crown disappears in a plume of white smoke.

The crown regains 1d4 expended charges daily at dawn.

Overpaid

You can use an action to expend 2 charges to have truesight out to 120 feet for 30 seconds.

Source: The Gray Merchant of Asphodel