PIS

Bu Yanjun, better known as PIS or YaphetS, is a presumably retired Chinese professional DotA player admired by many for his great reflexes in game, and notably known for leading his team Nirvana.cn to the World DotA Championship title in 2010. He is most notable and famous for his use of the hero Shadow Fiend, and is considered one of the greatest solo mid players in the game.

Early Years
The first time YaphetS came into public attention is the time his replays are continuously uploaded in sGamer.com, which recieved comments on being self-hyped. YaphetS himself had arguments on the forum causing him to be publicly disliked. In February 2008's CDL tournament, YaphetS and his team Sison competed and won the first match. However, in the later match, his team was caught cheating and was disqualified. YaphetS, being the team captain, suffered from public criticism. Soon after, he disappeared from the dota scene.

In May 2008, an old school Chinese team maGe reformed with YaphetS as the team leader. In an interview by sGamer.com he stated that "I want to say that our plans is to not play just within China, i think we will flourish internationally." This was regarded as overly arrogant by the community due to the team's less than ideal results. The team soon disbanded afterwards.

cYc
September 2009 in a WCG regional qualifier, Yaphets performed brilliantly, and caught attention of several teams. Less than a month later, Yaphets joins professional team cYc, and the team was able to challenge top teams such as EHOME and CH at that time. However, a wrong move by the manager sealed their fate as they disbanded. He lost to devilnam.

Guangzhou5
By the end of 2009, YaphetS joined G5. G5 did not last very long, and Yaphets still lacks the qualities of being a professional player. After his fatal mistake in the AWTV match against Russian team Rox.Kis, G5 split up and disappeared.

CityHunter
To continue his professional dota career Yaphets joined CH in 2010. the YouTube movie "Perfect is shit", which emphasized on his great reflexes and moves in the game, raised Yaphets' popularity to the top. However, a conflict between the team members, DGC and LongDD, has eventually caused YaphetS to side on DGC and leave CH.

Nirvana.cn
YaphetS joined Nirvana.cn after leaving CH, taking over xiami and zippo. A win in the World Cyber Games China 2010, followed by second places in several tournaments during the domination of EHOME. They stood at the top of the international dota scene, winning the World DotA Championship by beating Deity in the finals. He won a 1v1 showmatch in an precedently undecided tie between him and YamateH as the best Shadow Fiend in the world. Nirvana.cn also won the Razer Global Challenge, with many Europeans participating in the tournament.

DK
At the start of 2011, big-spending DK invited YaphetS to join their galactico squad. However, they underperformed throughout the first 6 months as YaphetS finally retired from professional DotA at the conclusion of the G-League season 1, where DK placed second.

ViCi
Bu ‘YaphetS‘ Yan Jun, also know as PIS, has been away from the competitive DotA scene for some time since 2011, when his team failed to win the G League Season 1. However, he is now returning to the competitive scene under the sponsorship of ViCi Gaming in 2013. Since his absence from the professional gaming scene in 2011, YaphetS has emerged from his 2 year hiatus, with his new team which is currently named the  ViCi Gaming Online Stand-In Team. And he has a Garena id named " ViCi.YaphetS "

After retirement
Yaphets now produces first-person videos on youku on his DotA games.

He is set to play a Dota 2 match together with World Elite against Captain Planet.

CH

 * Bronze medal icon.svg NGF (2010)
 * Silver medal icon.svg U9 (2010)
 * Bronze medal icon.svg Electronic Sports World Cup Chinese Qualifiers (2010)

Nirvana.cn

 * Gold medal icon.svg WCG China (2010)
 * Silver medal icon.svg G-League Season 2 (2010)
 * Silver medal icon.svg Natttnal eSports Open (2010)
 * Silver medal icon.svg Topgamer (2010)
 * Gold medal icon.svg World DotA Championship (2010)
 * Gold medal icon.svg Razer Global Challenge (2010)
 * Bronze medal icon.svg SMM Grand National DotA Tournament (2010)
 * Silver medal icon.svg World Gamemaster Tournament (2011)

DK

 * Silver medal icon.svg WCG side event (2011)
 * Silver medal icon.svg G-League season 1 (2011)
 * Bronze medal icon.svg ECL offline season 2 (2011)
 * Bronze medal icon.svg G1 Tournament (2011)