Lute of Thunderous Thumping

This reinforced lute can be wielded as a magic Club that deals an extra 2d8 Thunder damage on a hit.

Sing and Swing: If you're a Bard, you can use your Charisma modifier instead of your Strength modifier when making a melee attack roll with the lute, provided you sing or hum while making the attack.

Slow (Mastery): If you hit a creature with this weapon and deal damage to it, you can reduce its Speed by 10 feet until the start of your next turn. If the creature is hit more than once by weapons that have this property, the Speed reduction doesn't exceed 10 feet.

Light: When you take the Attack action on your turn and. attack with a Light weapon, you can make one extra attack as a Bonus Action later on the same turn. That extra attack must be made with a different Light weapon, and you don't add your ability modifier to the extra attack's damage unless that modifier is negative. For example, you can attack with a Shortsword in one hand and a Dagger in the other using the Attack action and a Bonus Action, but you don't add your Strength or Dexterity modifier to the damage roll of the Bonus Action unless that modifier is negative.

Proficiency: simple, club Source: Dungeon Master's Guide (2024) p. 275