Mipha's Grace

Any lethal hit spends it: a Lynel crusher, a Guardian beam, a fall, lava. It does not ask you to confirm. If you are cooking, climbing a puzzle, or practicing parries, that accidental death just removed your safety net for a long stretch of the castle.

The heal is a full revive plus bonus hearts, not a fairy that leaves you at a quarter heart. You stand up where you fell. Enemies do not reset. Have a plan for the second hit, because Grace will not be there.

Start at Zora's Domain, east of Lanayru. Sidon helps you board Vah Ruta. Inside, beat Waterblight Ganon. Mipha's signature is the reward, along with the heart container from the main terminal.

The cooldown is measured in real minutes, shown by the icon refilling on the screen. Do not start the castle approach while the icon is empty if you were counting on the revive. Fairies in your inventory are the backup, and they are not spent by a fall you survive.