Wondrous item, uncommon (requires attunement)
These striped gloves hide a set of wicked claws. While wearing them, you can draw and stow the claws like a normal weapon, extending or retracting the claws from the gloves when you do. Your unarmed strikes using the claws deal slashing damage, instead of bludgeoning damage, and use a d6 for its damage die, unless your unarmed strike damage die is already higher. If the target is prone, your attack rolls against it using the claws score a critical hit on a roll of 19 or 20.
In addition, once on each of your turns when you hit a Large or smaller target with the claws and had advantage on the attack roll, you can force that target to make a DC 13 Strength saving throw. On a failed save, the target is knocked prone.
Of the uninvited guest, the nobles first noticed her style: bold colors set off by deep blacks, high gloves the focus of a network of angular metalwork. She moved through the drably-dressed crowd like a predator through the jungle: implacable and unyielding, yet with unquestioned grace.
Next was noticed her voice, a deep purr that rumbled through the lords and ladies, entrancing all and setting nerves at ease. So potent was it, they forgot she'd answered no summons to the party but her own.
Last, and too late for their host, they noticed her claws.
And, rarely, a second flavor text that I just giggled at while preparing this post:
"Oh, you've got the eye of the tiger? Well, check these out."