Path of Destruction

You follow the Path of Destruction giving you the ability to deal massive damage to everyone and everything at the cost of damaging yourself

Before you roll to attack a creature with an attack you can choose deal damage to yourself equal to (1d6 + 1/4 max health) - CONSTITUTION modifier then upon a successful attack roll add the damage you received from this feat to your attack roll [your HP can fall below 0 but you do not enter a downed state until you take damage from a source other than this feat]. If you damaged a creature with an attack you heal yourself equal to (damage dealt/4) + Highest Stat modifier.