During battle, players can sacrifice a portion of Alm or Celica's health to summon a computer-controlled illusory hero, who acts as a temporary ally for a single round. As Alm and Celica grow stronger, their stats can be saved to their respective amiibo, allowing their phantom helper to gain strength alongside them.

• Celica is one of the two main characters in Fire Emblem Echoes: Shadows of Valentia.
• In Fire Emblem Echoes: Shadows of Valentia, players can sacrifice a portion of Celica's health during battle to summon a computer-controlled illusory hero by tapping the amiibo, which serves as a temporary ally for one round. As Celica becomes stronger, her stats can be saved to the amiibo, allowing the phantom helper to gain strength alongside her.
• Compatibility and functionality vary depending on Nintendo hardware and software.