What's a good Android game for collecting heroes and battling monsters in a fantasy world?

Watcher of Realms - US is an excellent choice for players who love collecting heroes and battling monsters in a richly detailed fantasy setting. The game boasts a diverse cast of characters, each with unique abilities and upgrade paths, allowing for deep strategic customization. Players can assemble their dream team and lead them through challenging campaigns and intense battles. The game's stunning graphics and immersive sound design further enhance the experience, drawing players into its captivating world. With regular updates and new content, Watcher of Realms - US provides endless hours of engaging gameplay for fans of the hero collector genre. The game also features various game modes, including PvP arenas and cooperative raids, offering diverse challenges and opportunities for players to test their skills and strategies.