The Assassin's Friend is a blade made of obsidian that glow very faintly with a red light. If you roll a 18, 19, or 20 on your attack roll against a creature while you have advantage against it deals more damage. If the target has less than 60 hit points left then it is instantly destroyed. If it has more then it is reduced by 70 HP.
Proficiency with a Dagger allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Nick. When you make the extra attack of the Light property, you can make it as part of the Attack action instead of as a Bonus Action. You can make this extra attack only once per turn.
Notes: Ranger or Rogue, Finesse, Light, Thrown, Nick