Based on the search results, "Joan Alter" (often referred to as or Jalter ) is a popular character from the Fate/Grand Order (FGO) mobile game and anime franchise. She is a distorted, "Altered" version of the historical Joan of Arc, appearing as an Avenger-class servant designed to be a vengeful figure.
Here is a helpful summary of her character and usage in FGO: Joan Alter
Boosts critical damage (+50%) and star gathering rate for 3 turns (ideal to level first). Based on the search results, "Joan Alter" (often
As an Avenger, she is a high-damage dealer, often noted for having some of the highest Attack (ATK) values in the game. Key Skills (Leveling Priority): Based on the search results