Glass Cannon

Prerequisites: Dexterity 13 or above
You Sacrifice 15 hit points, and gain the following benefits to your attacks.

You gain +3 to both attack and damage rolls, if you are a spellcaster you can choose to instead gain +3 to your spell attack modifier and spell save DC, critical hit chance increased by 1 (20 > 19-20 etc) and add one more weapon die to your critical hit damage.

Before you make an attack with a weapon that you are proficient with, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add +10 to the attack's damage. If the total is less than 1 it counts as a Critical miss.