During combat, players can sacrifice a portion of Alm or Celica´s health in order to summon a computer-controlled Illusory Hero, which will act as a temporary ally for a single turn. As Alm and Celica get stronger, their stats can be saved to their respective amiibo, allowing their Phantom Helper to grow in strength alongside them.

• Alm is one of the two main protagonists in the Fire Emblem Echoes: Shadows of Valentia game
• In Fire Emblem Echoes: Shadows of Valentia during combat, players can sacrifice a portion of Alm´s health in order to summon a computer-controlled Illusory Hero by tapping the amiibo, which will act as a temporary ally for a single turn. As Alm gets stronger, his stats can be saved to the amiibo, allowing the Phantom Helper to grow in strength alongside them
• Compatibality and functionality varies with different Nintendo hardware and software