Scimitar are martial, bladed weapons consisting of a sword with a curved blade that deal 1d6 slashing damage on a hit and have the Finesse and Light properties.

Properties

Finesse
When making an attack with a finesse weapon, you use your choice of your Strength or Dexterity modifier for the attack and damage rolls. You must use the same modifier for both rolls.

Light
When you take the Attack action and attack with a Light melee weapon that you’re holding in one hand, you can use a bonus action to attack with a different Light melee weapon that you’re holding in the other hand. You don’t add your ability modifier to the damage of the bonus attack, unless that modifier is negative. If either weapon also has the Thrown property, you can throw the weapon instead of making a melee attack with it.

Superior Strike

Hamstring.
In a vicious attack, you attempt to debilitate an enemy. Make an attack roll against a creature within your reach. On a hit, the target suffers the attack’s normal effects and takes extra damage equal to your proficiency bonus. In addition, until the end of its next turn, the creature’s AC is reduced by a value equal to its Dexterity modifier (minimum 0), and its speed is reduced by a number of feet equal to 5 times your proficiency bonus (to a minimum of 0 feet).