IEM Season XII - World Championship is a Starcraft 2 tournament organized by Electronic Sports League and held on Katowice, Poland. It started with Server Qualifiers to determine the best of the best players on Europe Server, America Server and Korean Server. All qualified 64 winners will be playing offline in ESL Arena and divided into a double-elimination brackets.

IEM Season XII - World Championship - Image Source

After that the remaining 24 winners will be divided into four groups of six players where they will do a round robin with best of 3 matches. 12 players are eliminated instantly in Group Stage where only 8 players moved playoffs.

Players Trap, Dark, Dear, Impact, Hurricane, Rogue, sOs and Maru will have single elimination best of 5 matches.

IEM Champion Rogue - Image Source

Rogue did manage to win the finals using Zerg race. It was a sweep win with 4-0 standing against finalist Classic.