From League of Legends Wiki
Jump to: navigation, search
Mrn heartbeat lcs.PNG
Background Information
NameSung Moo Lim
Country of BirthSouth Korea
BirthdayMay 7, 1991 (1991-05-07) (age 28)
Social Media
Team History
TeamStart DateEnd DateRole
UC San Diegologo std.png UCSDDec 2011-
Team MRNlogo std.png MRNDec 2012May 2013
Team Dignitaslogo std.png DIGJun 2013Jan 2015
Team Dignitaslogo std.png DIGJan 2015Nov 2015
"Heartbeat" (Real Name: Sung Moo Lim) is a retired Korean League of Legends player, formerly a Support 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.

On January 9th, 2015, Team Dignitas announced that they are searching for new substitution players and that Cruzerthebruzer, Azingy, Flappy Bearfish, and Heartbeat are no longer on the roster.[1]

Career History


  • 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  Lulu.
  • Renowned for reviving  Urgot picks during the NA LCS Qualifiers.
  • Popularized  Tristana picks in the NA LCS.


Date Event Result
2013-06-15 Howie's E-vitational size=24px Otter W : FF Logo std2.png prototype19
2012-11-11 Lone Star Clash 2 Copper.png UC San Diego 0 : 2 UT Austinlogo std.png UT Austin
2012-02-27 CSL LoL REDUX Silver.png UC San Diego 0 : 2 University of California, Irvinelogo std.png University of California, Irvine
2012-01-15 Winter Game Fest 2012 Copper.png UC San Diego 0 : 1 University of California, Irvinelogo std.png University of California, Irvine