Volo's Guide to Monsters (5e)
Lightfooted. The swashbuckler can take the Dash or Disengage action as a bonus action on each of its turns.
Suave Defense. While the swashbuckler is wearing light or no armor & wielding no shield, its AC includes its Charisma modifier.
Multiattack. The swashbuckler makes three attacks: one with a dagger & two with its rapier.
Dagger. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 6 (1d4 + 4) piercing damage.
Rapier. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) piercing damage.
Any Climate; Costal, Urban