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Newprofile heartbeat.jpg
Background Information
Name: Sung Moo Lim
Country of Birth: United States USA
Birthday: May 7, 1991 (1991-05-07) (age 25)
Team: Team Dignitas
Role: Sub
League Information
Peak League: DiamondLeague.png Diamond I (NA)
Alternate IDs: MRN Heartbeat, k Heartbeat, Heartbit, Heartbeattt
Social Media Links
link=Twitch TwitterIcon.png RedditIcon.png
Team History
Dec 2011 - Dec 2012
UC San Diego
Dec 2012 - May 2013
Team MRN
Jun 2013 - Present
Team Dignitas
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Sung "Heartbeat" Moo Lim is the Substitute Player for Team Dignitas.


He began his gaming career playing Defense of the Ancients and quickly grew tired of the game. Looking for a new game to play, he stumbled upon League of Legends and enjoyed playing it and has played ever since. He is currently attending UC San Diego in pursuit of an Applied Mathematics degree. Although he started off as an ADC for Team MRN, he switched over to the role of support with Nientonsoh taking over ADC. He has stated that this was because being ADC was too mechanically demanding to both perform well and to be able to call plays for his team.


  • Was on a team with L0CUST and TakashiX early in his League of Legends career.
  • Known for building Leviathan on his AP Carries during tournament play.
  • His English name is Peter.
  • His most played champion in the LCS after switching over to Support is
  • Renowned for reviving
    picks during the NA LCS Qualifiers.
  • Popularized
    picks in the NA LCS.


Date Event Result
2013-06-15 Howie's E-vitational Gold.png
W : FF
2012-11-11 Lone Star Clash 2 Copper.png
0 : 2
UT Austin
2012-02-27 CSL LoL REDUX Silver.png
0 : 2
UC Irvine
2012-01-15 Winter Game Fest 2012 Copper.png
0 : 1
UC Irvine





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