icefrog
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Icefrog is the unknown man that drives DotA. IceFrog's involvement with the development of DotA began in 2005, when he was a member of the clan TDA. The lead developer at the time, Steve "Guinsoo" Feak, recruited IceFrog and Neichus with the programming aspect of the mod, as the complexity increased substantially. That year, Guinsoo handed development of the mod to Neichus, as he lost interest in continuing to support the map and sought time to play World of Warcraft. IceFrog worked as Neichus' assistant collaborator for a short period of time, until full control of the map was turned over to IceFrog. Since then, IceFrog has worked continuously to balance DotA and add new innovative features. What has been noted about the difference between Guinsoo and IceFrog is that while Guinsoo produced heroes at a rapid rate, IceFrog has been highly meticulous with the development process.
Matthew "Cyborgmatt" Bailey
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Matthew Bailey is a self proclaimed "Dota 2 patch eviscerator." He streams on Twitch.tv, a popular video game streaming website, about recent Dota 2 patches, analyzing them and looking at the contents.
WehSing "SingSing" Yuen
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WehSing "SingSing" Yuen is a professional Dota 2 player who is known for his unique and crazy playstyle and builds. Before he played Dota 2, Sing played Heroes of Newerth and DotA. His often troll-oriented streaming style attracted attention from viewers, and he quickly became one of the most watched streamers.
Danylo "Dendi" Ishutin
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Danylo "Dendi" Ishutin is a DotA player currently playing for Natus VIncere. Many consider him to be the best solo mid player in the world. Dendi, along with Artstyle and LightofHeaven, left DTS to join Na`Vi early 2011. They won The International and ESWC 2011, the latter of which where Dendi's Pudge completely dominated EHOME with blind hooks in the finals, ending with 20 kills, 1 death, and 8 assists cementing his fame as one of the most famous Pudge players on the professional scene.