Duelist

You master the art of fighting with a single weapon, gaining the following benefits:

• When you are wielding a melee weapon in one hand and no other weapons, you are within 5 feet of a creature, and there are no other creatures within 5 feet of you, you gain a +1 bonus to attack rolls made with that weapon.
• When you hit with a weapon attack while wielding a melee weapon in one hand and no other weapons, you can use your bonus action to wound the hit creature more than you otherwise would have. Your next attack against the creature until the beginning of your next turn has advantage, and if you hit, the hit creature's speed is reduced by 10 feet until the start of your next turn.