Dueller's Enthusiasm is a weapon action granted by 
Duellist's Prerogative.
Description
While you are not dual-wielding, you can make an additional melee attack with The Dueller.
Properties
- Damage
1d8 (1~8) + Strength or Dexterity modifier 
Piercing damage - +
1d4 (1~4) 
Necrotic damage - Details
Attack roll
Recharge: Per turn
How to learn
Granted by the weapons:
Notes
- Wearing a shield disables Dueller's Enthusiasm (or is considered dual-wielding for this action).