Indomitable Human Spirit

Although generally unremarkable, some humans have the ability to overcome almost any odds when pushed to their limit. While you have less than half your Hit Points you gain the following benefits:

• You gain 1d4 to add to Ability Checks, Saving Throws and Attack Rolls.
• When you hit a creature with an attack while this feat is active you can choose to critically strike. Once you do so you cannot benefit from this feat again until you finish a long rest.