Starting April 14th (today) a Summoning event will introduce four heroes from the upcoming 3DS game Fire Emblem Echoes: Shadows of Valentia to Nintendo’s mobile game Fire Emblem Heroes.

The Fire Emblem Echoes: Shadows of Valentiacharacters being added are Alm, Clair, Faye, and Lukas. Several new updates to the mobile game are also already available, including a new feature called Hero Merit, a new stat that increases every time a hero finishes a battle alive. When their Hero Merit reaches 500 points, players receive 500 Hero Feathers.

Another recent update has raised the maximum stamina for all players from 50 to 99.

Check out the launch video for the new heroes of the game, and below that the video for the Spring Heroes Festival in the game.