MOBA style games are definitely becoming a trend, however, there still hasn't been a decent game for smartphones within this sub-genre, and certainly not one that could ever come close to rivaling DOTA 2 or League of Legends. That being said, Mobile Legends has come up with a shameless but equally fun League of Legends clone with multi-player online gaming; and it should be said that it is up to par with its PC counterparts.
The game lets you clash with up to 5 vs 5 players using tactical controls on your screen. It's up to you to wipe out enemy fortifications while controlling your hero and improving your own terrain. You'll also need to manage creating and training your minions.
Mobile Legends is a Free-to-Play game, and luckily, it's monetization system is limited to aesthetic upgrades, which is why the real potential here is left unspoiled and laid visible on the battleground where victory will only be yours if you're a truly skilled player, not by buying your way up. As you continue to play, you'll get to unlock new heroes and get experience in your specialization to gain new ground on international ranking boards.