Damage Syphon

Damage Syphon (ダメージアスピル), also called MP Rage, is an ability introduced in . It allows the user to recover their ability-fueling gauge when damage is taken. Equipping multiple copies increases the effect. The greater the damage, the greater the recovery.

Mechanics
In Kingdom Hearts, MP Rage is a that restores MP when damage is taken. It costs 2 to equip, 3  in Kingdom Hearts Final Mix.

In Kingdom Hearts II, MP Rage is a that restores MP when damage is taken, as long as the user is not in MP Charge. The MP recovered is based on the formula (HP damage taken ÷ maximum HP × 100 × no. equipped). It costs 3 AP to equip.

In Kingdom Hearts Birth by Sleep, Damage Syphon is a that restores the Focus Gauge when damage is taken. It can be equipped once.

In Kingdom Hearts 3D: Dream Drop Distance, Damage Syphon is a that restores the active Spirits' Link Gauges by 0.5% when damage is taken. It can be equipped once. The Link Accelerator ability increases the amount of Link Gauge filled by 0.1% per level.

In Kingdom Hearts III, Damage Syphon is a that restores MP when damage is taken, as long as the user is not in MP Charge. The MP recovered is based on the formula (HP damage taken ÷ maximum HP × 100 × no. equipped). It costs 3 AP to equip.

Kingdom Hearts

 * Sora learns MP Rage at levels 33 and 51 with the Dream Rod, 36 and 66 with the Dream Shield, and 57 and 66 with the Dream Sword.
 * learns MP Rage at levels 20 and 40.
 * Goofy learns MP Rage at levels 39 and 45.
 * Jack Skellington has MP Rage as a default ability.
 * Ariel has MP Rage as a default ability.
 * The Beast has MP Rage as a default ability.

Kingdom Hearts Final Mix

 * Sora learns MP Rage at levels 42 and 75 with the Dream Rod, 63 and 87 with the Dream Sword, and 90 and 100 with the Dream Shield.
 * Donald learns MP Rage at levels 19 and 49.
 * Goofy learns MP Rage at levels 39 and 57.
 * Jack Skellington has MP Rage as a default ability.
 * Ariel has MP Rage as a default ability.
 * The Beast has MP Rage as a default ability.

Kingdom Hearts II

 * Sora learns MP Rage at level 41 with the Dream Shield, 53 with the Dream Rod, and 99 with the Dream Sword.
 * Sora learns MP Rage after leveling Wisdom Form to level 4.
 * Donald learns MP Rage after defeating Demyx at Olympus Coliseum.
 * Goofy learns MP Rage after defeating Shenzi, Banzai, and Ed in the Elephant Graveyard.
 * Auron has MP Rage as a default ability.
 * Simba has MP Rage as a default ability.
 * The Hidden Dragon has MP Rage as its equipment ability.
 * The Shaman's Relic has MP Rage as its equipment ability.
 * The Save the King+ has MP Rage as its equipment ability.

Kingdom Hearts II Final Mix

 * Sora learns MP Rage by leveling up Wisdom Form to level 4.
 * Limit Form has MP Rage as a default ability.
 * Donald learns MP Rage after defeating Demyx at Olympus Coliseum.
 * Goofy learns MP Rage after defeating Shenzi, Banzai and Ed in the Elephant Graveyard.
 * Auron has MP Rage as a default ability.
 * Simba has MP Rage as a default ability.
 * The Hidden Dragon has MP Rage as its equipment ability.
 * The Spell's Relic has MP Rage as its equipment ability.
 * The Save the Queen+ has MP Rage as its equipment ability.
 * The Nobody Guard has MP Rage as its equipment ability.
 * The Save the King+ has MP Rage as its equipment ability.
 * The Shadow Archive+ has MP Rage as its equipment ability.

Kingdom Hearts Birth by Sleep

 * Damage Syphon can be attached to a or  Command recipe through Command Melding, either randomly or by applying a Soothing Crystal.

Kingdom Hearts 3D: Dream Drop Distance

 * Sora and Riku can purchase Damage Syphon from the Ducky Goose Ability Link for 150 Link Points.
 * Sora and Riku can purchase Damage Syphon from the Thunderaffe Ability Link for 300 Link Points.
 * Sora and Riku can purchase Damage Syphon from the Ursa Circus Ability Link for 300 Link Points.

Kingdom Hearts III

 * Donald learns Damage Syphon after defeating the Nobodies at the.
 * Rapunzel has Damage Syphon as a default ability.
 * The Save the Queen has Damage Syphon as its equipment ability.
 * The Save the Queen+ has Damage Syphon as its equipment ability.
 * The Save the King has Damage Syphon as its equipment ability.
 * The Save the King+ has Damage Syphon as its equipment ability.
 * The Fire Chain has Damage Syphon as its equipment ability.
 * The Blizzard Chain has Damage Syphon as its equipment ability.
 * The Thunder Chain has Damage Syphon as its equipment ability.
 * The Dark Chain has Damage Syphon as its equipment ability.
 * The Aqua Chaplet has Damage Syphon as its equipment ability.
 * The Moon Amulet has Damage Syphon as its equipment ability.
 * The Star Charm has Damage Syphon as its equipment ability.
 * The Cosmic Arts has Damage Syphon as its equipment ability.

Notes and references
Vaillance (Capacité) Esprit