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.
Celica is one of the two main protagonists in Fire Emblem Echoes: Shadows of ValentiaIn Fire Emblem Echoes: Shadows of Valentia during combat, players can sacrifice a portion of Celica'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 Celica gets stronger, her stats can be saved to the amiibo, allowing the Phantom Helper to grow in strength alongside themCompatibality and functionality varies with different Nintendo hardware and software
