During his time on Cloud9, Hart played the support role, winning the North American League of Legends Championship Series split titles and appeared in three consecutive League of Legends World Championships.

[5] 2012 Season Hart was picked up after gaining notoriety in the League of Legends scene for reaching rank 1 in solo queue playing only support.

2013 Season Hart and a newly reformed Cloud 9 team went on to have a strong performance in the LCS Summer Split, ending with a victory against TSM 3–0 in the playoff finals.

After the return of Hai, however, they managed to improve their record and place a spot in the World Championship.

In the championship, they were undefeated in their seed in the first week but went on to lose four games in a row to advance to the quarter-finals, placing third in their group.