Hero's DefianceFocus 10
Source Pathfinder Core Rulebook
Cast
(verbal)Trigger An attack would bring you to 0 Hit Points.
You shout in defiance, filling you with a sudden burst of healing. Just before applying the attack's damage, you recover 10d4+20 Hit Points. If this is enough to prevent the attack from bringing you to 0 Hit Points, you don't become Unconscious or Dying. Either way, cheating death is difficult, and you can't use hero's defiance again until you Refocus or the next time you prepare. Hero's defiance cannot be used against effects with the death trait or that would leave no remains, such as disintegrate.
Traits
Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of Recall Knowledge checks related to these creature is increased by 2.
NecromancyEffects and magic items with this trait are associated with the necromancy school of magic, typically involving forces of life and death.
ChampionThis indicates abilities from the champion class.
HealingA healing effect restores a creature's body, typically by restoring Hit Points, but sometimes by removing diseases or other debilitating effects.
PositiveEffects with this trait heal living creatures with positive energy, deal positive energy damage to undead, or manipulate positive energy.