Fire Syphon (ファイアアスピル, Faia Asupiru?, lit. "Fire Asper") is an ability in Kingdom Hearts III. It allows the user to recover their MP when Fire damage is taken. The greater the damage taken, the greater the MP recovery.
In Kingdom Hearts III, Fire Syphon is a support ability. It can be multi-installed to increase its effect.
Learning Fire Syphon
Kingdom Hearts III