Sou L was a Korean professional Star Craft: Brood War and Star Craft II team.
At the Blizz Con event, Eff Ort earned the championship by defeating Zer O.
This gives him a 19 win, 10 loss record going into Winners League and the third most wins of the league.
In the 2010 Korean Air OSL, Eff Ort defeated Flash, the heavy favorite, 3-2 after a 0-2 deficit.
It was formerly one of the eight Ke SPA-recognized teams participating in Proleague under the name STX Sou L.
After losing its primary sponsor, STX Corporation, the team disbanded on the 20th December of 2013.