Club, an early opponent of Kenshiro from Fist of the North Star, had a particularly long set of these as his Weapon of Choice, often licking the blood of his victims off them.

Stone: Minister Ibara possesses the nailed claw kind which he brandishes out when he caught Ginro finding out the Petrification Kingdom Head's real state and even impaled him with it. Most of His subspecies has some variation on them. They are super effective against dragons including himself if he's not careful.

Wargreymon from Digimon has these in the form of 'Dramon killers'.Rosaland from Cyber Weapon Z wears retractable claw bracers.

Also there are drawbacks in using multiple blades relating to dispersion of force which is why they are rare in real life and bio-mechanically its much easier to wield blades orientated vertically to the arm and hand rather than horizontally making them Awesome, but Impractical for the most part. Also, since they usually lack a guard piece (especially when they are retractable), any claw-to-sword type combat really should end with the other blade sliding down into the back of your hand, or under it into the knuckles. However, in fights involving larger weapons they would be less effective considering their limited reach compared to a sword or polearm. Weapons of these type are presumably easier to conceal and use in close quarters, depending on the size and nature of the blades. When these weapons are unsheathed, they often make a distinct 'snikt!' noise or some variant. Any character sporting these will be improbably effective with them. Wolverine Claws on a good guy suggest animalistic or Nature Hero traits on a bad guy they show that he or she is especially bloodthirsty and likely Ax-Crazy. The blades can be a natural part of their body, artificial implants, stuck on a glove or gauntlet, or actually be a variation of bladed brass knuckles. Characters that fight with multiple blades attached to their hands or fingers to emulate gigantic metal claws.

Ramon shadowrun hong kong wiki