Monster Super League is one of the most popular RPG games which features similar gameplay with Pokémon or Digimon. You can capture hundreds of cute monster and train them up until they are powerful enough to beat any opponent. The competition in MSL is not limited to monster battles but also to monsters' growth process too.
MSL Mod APK is a hacked version of original Monster Super League Game where players can get free Golds, Gems, Monsters, and so on. There are some people who don't have money to spend in order to upgrade their monsters so they use this MSL Hack Apk. Once the developer found out about it, they will release another version without the hack feature.