Executioner

You have mastered the ancient art of beheading, and you can kill with style. You gain the following benefits:

• You know how to work execution machines (guillotines, gallows, etc.), therefore you are considered proficient in execution devices.
• You have advantage on Charisma (Performance) and Charisma (Intimidation) checks you make when trying to execute someone.
• Whenever you successfully land a hit against a creature with a martial melee weapon that deals slashing damage, and the highest number of the damage die you're using equals or exceeds the creature's current hit points (without adding damage modifiers), you can choose to use the highest number of that damage die to knockout the creature. Additionally, whenever the highest number of the damage die you're using equals the creature's current hit points (without adding damage modifiers), you can choose to kill the creature outright instead of knocking the creature out, and whenever you kill a creature in this way, you can choose to behead the creature if you can and you gain the following benefits for 5 minutes (whether you behead the creature or not):

1. Your current hit points increase by a number equal to your proficiency bonus, up to your maximum amount of hit points.
2. The next three melee attack rolls made against you have disadvantage.
3. The next three melee attack rolls you make have advantage.