Petter "Hjärnan" Freyschuss is the AD carry for G2 Esports.
Hjärnan joined his first competitive team, Team Property, under the alias "Infinity", towards the end of the season. His only notable tournament with the team was at DreamHack Winter 2013, though they did not make it out of the group stage. At the end of the season, Hjärnan left the team.
Hjärnan joined newly formed Cloud 9 Eclipse at the start of the season, and this saw him playing in a roster that included Febiven and Voidle. The team's first tournament was the SCAN EUW Winter Invitational. The roster managed to impress from the very start, finishing 1st after beating Gamers2 in the final of the tournament. Hjärnan and the team continued in the same form, winning Challenger Spring #1. An uncharacteristic dip in the team's play lead to Cloud 9 Eclipse being knocked out of Challenger Spring #2, losing to Departed in the quarterfinals.
Despite this, Hjärnan and the team went on to win a number of tournaments on the run. The first of these was Week 20 of the EUW Challenger Series, where they took revenge by beating Departed in the final. Next up was the 2014 Black Monster Cup Europe - Spring, where C9E took further revenge, beating Denial eSports.Europe in the final, after the organization picked up the roster of Departed. The team also won International Invitational Tournament 3, beating Dark Passage in the final.
Soon after, Cloud 9 Eclipse competed at the Copenhagen Games 2014 with Santorin subbing in the jungle - the team managed a 2nd place finish, behind Ninjas in Pyjamas. Hjärnan and C9E then returned to the Challenger Series with the Spring Playoffs. The team won the tournament, again taking revenge by beating Ninjas in Pyjamas in the final. This would mean that C9E would have a chance to qualify for the LCS in the Summer Promotion. Unfortunately for Hjärnan and the team, they lost their promotion match-up against SUPA HOT CREW. Hjärnan and Cloud 9 Eclipse's last tournament would be the LoL Pro League - Season I, which they managed to win. After this, the team's roster was released. Hjärnan and the majority of the former C9E roster then decided to join H2k-Gaming.
Hjärnan's first tournament with H2k was the Challenger Summer #1, which the team won, beating Ninjas in Pyjamas in the final. Next up for Hjärnan was the Dailymotion Challenger Cup, where the team finished 3rd after losing to SK Gaming Prime in the 4th round of the winner's bracket and surrendering their 4th round loser's bracket match to Unicorns of Love. H2k also competed at FACEIT Challenger Invitational 3, but did not make it out of the group stages. Hjärnan and the team returned to the Challenger Series with Challenger Summer #2, but the series was not a success, with H2k-Gaming finishing in 4th place after surrendering their 3rd place match against Gamers2.
Soon after, Hjärnan and the team returned to winning form with the Summer Playoffs, beating SK Gaming Prime in the final. They followed this up with a win over Ninjas in Pyjamas in the final of the FACEIT Gamescom Challenge. Due to their performance in the playoffs, H2k-Gaming had secured themselves a place in the Spring Promotion. Despite a considerable amount of hype surrounding the team, they were beaten by Copenhagen Wolves in their promotion match-up. After this disappointment, H2k were quick to recover; going on to beat n!faculty in the final of Challenger FaceOff 3. They also managed to win the 2014 Black Monster Cup Europe - Winter, beating SK Gaming Prime in the final.
With H2k-Gaming, Hjärnan competed in the Spring Expansion Tournament, and qualified for the Offline Stage after beating Meloncats. In the Offline Stage, H2k won their first match-up against n!faculty, meaning that they were one win away from qualifying for the LCS. The team went on to beat GIANTS! Gaming in the Winner's Bracket Final, ensuring that they would be playing in the Spring Split.
The Spring Split itself was relatively successful for Hjärnan and H2k-Gaming. After a shaky start, results began to pick up for the team, partly thanks to the introduction of kaSing to the roster. Hjärnan's impressive individual performances throughout the rest of the split, particularly on Sivir, helped the team to a 3rd place finish in the regular season. In the Spring Playoffs, Hjärnan and the team beat Copenhagen Wolves in the quarterfinals, but were beaten in the semifinals in a close-fought series by eventual champions Fnatic. H2k-Gaming went on to pull off a shock victory over SK Gaming in the 3rd place match, securing themselves 50 Championship Points.
Hjärnan and the team began to impress from the very start of the Summer Split. H2k-Gaming jostled for 2nd position with Origen throughout the regular season, with Fnatic way out in 1st place throughout. Impressive performances from Hjärnan on a number of champions ultimately helped the team to yet another 3rd place regular season finish. The Summer Playoffs also went well for Hjärnan and the team, beating Giants Gaming in the quarterfinals of the tournament. The were beaten in the semifinals by Origen, but went on to beat Unicorns Of Love in the 3rd place match, securing the team 70 Championship Points, which meant that the team had qualified for the 2015 World Championship as Europe's #2 seed.
At the 2015 World Championship, H2k-Gaming were seeded into Group C along with SK Telecom T1, EDward Gaming, and Bangkok Titans. They picked up 2 wins in the group, both coming against BKT. Hjärnan and the team finished the group in 3rd place, meaning they would not advance to the knockout stage of the tournament.
Hjärnan joined Team Vitality for the 2016 season. With himself, Cabochard, Shook, Hjärnan, and kaSing comprising the roster, the team was considered one of the top lineups in the LCS, and they finished the split in third place, behind the surprise first-place G2 Esports and second-place H2k. In the playoffs, however, they were upset by the sixth-place Fnatic and eliminated in the quarterfinals.