Unbreakable Focus (Intelligence)

Your uncanny ability to remain unshaken under fire has made you a most cruel killer; your Focus can only be described as terrifying. You gain the following benefits:

• You gain Focus Points equal to your proficiency modifier.
• Once per turn, when you hit with a ranged spell attack, you gain 1 Focus Point.
• Each Focus Point you accumulate adds a +1 to ranged spell attack rolls, stacking up to a maximum of your proficiency modifier.
• You may expend any number of your Focus Points after a successful ranged spell attack hit to add an additional 1d6 per Focus Point.
• When you take damage with half of your Focus Point maximum (rounded down), you must make a Concentration check as though you were focusing on a spell. On a success, you keep all Focus Points. On a Failure, you lose all your Focus Points.
• You gain proficiency in Intimidation.
• When a creature subjects you to an effect that would cause the Frightened condition, you may expend 1 Focus Point to make a Charisma (Intimidation) Check, contested by the Creatures Wisdom (Insight) Check. If the creature fails, you are not Frightened and the creature is Frightened of you for one round. If the creature succeeds, then it is not Frightened, and the normal conditions of its Frightened effects apply.
• At Maximum Focus, you may add your spellcasting Ability Modifier to your damage rolls on any ranged spell attack (Minimum of +1).
• You lose all Focus Points on a Short or Long rest.