Fury of the Fallen

Usefulness
Fury of the Fallen only affects Nail damage (including the strength of Nail Arts), so a build using this charm should be Nail-focused and not Spell-focused.

Since the ability requires the player to be in a near-death state, it is most useful in builds where the player tends to get damaged a lot (being a new or unskilled player) or builds designed to intentionally bring the player down to 1 Mask, such as speedrunning where the player can reliably dodge most attacks.

In a regular game, Fury of the Fallen is only useful if the player is able to avoid taking the last hit of damage for long enough to get in nail hits. Using Quick Slash and Grubberfly's Elegy to deal more damage faster or from a safer distance is recommended. Otherwise, it is more advised to use a charm like Quick Focus to bring the player back into the fight sooner.

It is not recommended to use it in Steel Soul Mode as the player can die really easily, and needs to restart that game file again.

How to Acquire
Found in King's Pass, the starting cavern, behind a spike filled cavern. Look for the Geo cluster in the bottom right of the pit room. Dash to cross the spikes, and continue right to find the charm.

Can be reached in the beginning of the game by nail pogoing off of the spikes, or returned to later with the Mothwing Cloak or Mantis Claw.

Trivia

 * Prior to the Lifeblood update, when Fury of the Fallen was activated the screen was bordered with wispy red lines and the player was circled in a red icon. Subsequently the red circle was removed and the effect around the player was changed to be a red smoke.
 * It is useless against bosses where all possible hazards and attacks deal two masks of damage if the player has an even number of masks and has Joni's Blessing equipped, as this makes it impossible to have an odd number of HP. It’s also useless if Deep Focus was equipped with that even number of HP.

Furia de los caídos Ярость падших