Duelist's Earring

Uncommon Wondrous Item (Cursed)
Requires attunement

Fortuna. This earring has 3 charges. You can expend a charge before making an attack to gain advantage on that attack roll. If the attack misses, you have disadvantage on the next attack roll you make and cannot use this feature again until you have made an attack. Misfortune (Curse). Whenever you critically miss any attack, the earring expends a charge without any beneficial effect. If the final charge is expended in this way, you have disadvantage on all attack rolls until you finish a long rest.