Ace of Blades

You are a knife-wielding knave, a savant with a stiletto, a duke of dirks, granting the following benefits while wielding the humble dagger: 

• Knife to See You! You can use the attack modifier of a Dagger you're wielding instead of your usual modifier when you make a Charisma (Intimidation) check.
• By a Thousand Cuts. When you attack with a Dagger, you can replace its mastery property with the Graze property for that attack.
• Dagger of Many Daggers. Once per Short Rest, you can throw a dagger at a space within 30 feet of you, causing a Cloud of Daggers to appear in that space for as long as you Concentrate on it.