It's been a while since I've seen a list like this & my players (level 6) are about to loot the "downgrades" left behind by a petty and vindictive archmage. I'm looking for more Blursed items (items that are cursed/have a significant drawback, but are still good enough to consider using).

Example:

Blinkback Boots (Wondrous magic item, requires attunement, 3lb)

• The boots appear to be a functioning pair of Blink Boots (granting access to Misty Step spell 1/day).
• After attuning to these boots, the wearer may cast the Misty Step spell 1/day as a bonus action. The wearer may subsequently activate the ability with their own spell slots.
• Curse: On the subsequent round, the wearer must use their bonus action to prevent being returned to their original location. If that location is occupied, all impacted objects take 1d10 force damage. Damage scales with level (2d10 at 5th level; 3d10 at 11th level; and 4d10 at 17th level).

What other blursed items have been fun for y'all to give to your players?

*Edited to remove Identify revealing the curse (was unaware of RAW).