Faker, what is a grand slam?

Intercontinental trophy. Faker, the first player in League of Legends, has won three S matches, 1 MSI mid-season match, 1 IEM match, and won numerous league titles, only one intercontinental trophy away from the Grand Slam achievement. Faker, whose real name is Shan in League of Legends, is a member of League of Legends branch of Korean e-sports club SKTT 1