Great Weapon Master

You've learned to put the weight of a weapon to your advantage, letting its momentum empower your strikes

Benefit

• On your turn, when you score a critical hit with a melee martial attack or reduce a creature to 0 hit points with one, you can make one melee martial attack as a Bonus Action.
• Before you make a melee martial attack with which you are proficient in, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add a number of d6s of damage to the attack equal to half of your Proficiency bonus.
• While making a melee attack roll with a Two-Handed weapon, a Versatile weapon wielded in two-hands, or a Primary natural attack, you add your Strength modifier to damage rolls, if you already apply your strength modifier to damage rolls, you add double your strength modifier to damage instead.
• While making a melee attack roll with a weapon wielding in one-hand, an Unarmed Strike, Martial Arts attack, or a Secondary natural attack, you add half of your Strength modifier to damage rolls (rounding up), if you already apply your Strength modifier to damage, you add 1.5x your strength modifier to damage rolls (rounding up) instead.