The qualifiers brought out the eight best teams from each region which will be joining the 3 fan favorite teams from both North American and European circuit that qualified based on season 2 performance. These team will battle it out in another round of qualifiers starting tomorrow and will go on to compete in the rest of the championship.
The first half of the championship takes place from February 7 to April 20 and the second half June 1 to August 31. The top teams remaining after the second half will finally go on to compete in the World Championship. The qualifying teams will also compete in various events throughout the year including The All-Star break which will put top players from across the world into regional teams that will go on to compete for prizes. Riot is answering all questions in an ask me anything session on reddit.
Read more on the League of Legends website.