Eclat

エクラ, Kiran, 艾克拉, Summoner (召喚師), Master Summoner, Commander

The Summoner is a protagonist in Fire Emblem Heroes. Similar to the Tactician from Fire Emblem: The Blazing Blade, the Summoner is a silent character who represents the player and is thus responsible for the army's strategy, but does not directly participate in battle.

(Source: Fire Emblem Wikia)