Idle Summoner: Grand Battle

Idle Summoner: Grand Battle is a fantastic RPG in which you can summon legendary heroes, collect squads from them and destroy hordes of monsters. Summon the best to the war, use, and forces for victory and be sure to go through the school of magic, there you will be taught valuable things. Monsters invaded the world and violated all the plans of people, you will have to destroy them all in order to save humanity. Combine attacks to make them as powerful as possible. Only experience will help you achieve a lot and become the best.