Cat Claw (4e Equipment)
From D&D Wiki
 Cat Claw
 Superior Melee Weapons
|Cat Claw||+2||1d8||—||10gp||2 lb.||Light Blade||Brutal 1, Off-hand|
This weapon is somewhat similar to a katar in the way it's wielded. A cat claw is, as it's name suggests, a claw-like weapon with three blades curved downward. It's quite difficult to wield, but they hit hard and are very light. Some rogues decide to train themselves with these weapons because of that.