Limited Hero Battle is a special map type in Fire Emblem Heroes.
Limited Hero Battles take previously released Grand Hero Battle, Bound Hero Battle, and Legendary/Mythic Hero Battle and put a special restriction on them to give players an additional challenge. Limited Hero Battles are treated as a special event and are released over the course of five days on a scheduled week with five different maps during this period. All maps have the restriction of only allowing characters from a specific Fire Emblem title to be used. The chosen title is preset for each map, but players can choose any unit from that game. Some maps may have an additional restriction, usually restricting the number of units with Dance-like functions to one deployed unit or none at all.