Impa

To unlock Impa in Age of Calamity, you must complete the very first mission - Chapter 1, The Battle for Hyrule Field. Impa's unique action allows her to absorb three symbols via her strong attacks to create duplicates of herself. If you manage to absorb three symbols, then the damage dealt by her strong attacks will be greatly increased.

The steadfast Impa cares little for her own well-being in her tireless efforts to protect the royal family. She will always protect Princess Zelda, even if it means risking her own life for the princess and for Hyrule.