Souls are used to restore your energy meter. They can also be spent to unlock other fighters. Nine souls are required to restore the energy of an entire team. Create a second and third team of fighters as soon as possible. This allows you to continue playing with another team and not spend souls to replenish your original team's energy. Simply allow the energy to restore naturally over time. Complete all three daily missions to be awarded extra Souls. Play online in Ladder Tournaments. The amount of Souls rewarded varies. This is also a good method to gain additional allies. Sometimes extra Souls are given as a bonus reward for leveling up a fighter. Complete more additional towers, which result in extra Souls as a first time bonus. Link to the console version of Mortal Kombat X to receive bonus Souls in the mobile version.