Supernal Rejuvenation

Your bodies recuperative faculties have naturally tapped into the divine nature of restorative magic, granting it immense healing capability.

• Your Constitution score increases by 1, up to a maximum of 20.
• Your hit dice maximum is considered to be equal to your level plus your Constitution bonus for the purposes of a short rest.
• Long rests restore an additional number of spent hit dice equal to your Constitution modifier.

In addition to the above, choose one of the following:

• Once per short rest, you may use an action to spend a number of unspent hit dice up to your Constitution bonus (minimum 1). Roll the spent number of dice. For each dice rolled this way, add the result to your constitution bonus. You heal for the total.
• As an action on your turn, you can spend 2 of your unspent hit dice to remove either 1 point of Exhaustion or one of the following Conditions from yourself: Blinded, Deafened, Stunned, Poisoned, Paralyzed. You can use this action a number of times per long rest equal to your Constitution bonus (minimum 1)
• As a reaction, if an attack reduces you to 0 hitpoints you can choose to spend half of your unspent hit dice, rounded down. For each die spent this way, you heal an amount equal to your constitution bonus. This healing occurs before effects that are dependent on your current hit points. You may only use this ability once per long rest.

You may take this feat multiple times, but each time past the first only grants you an ability from the selections. The selected ability cannot have already been granted by this feat.