Kevin “misutaaa” Rabier entered the world of eSports in 2017, starting his career in Counter-Strike. Initially, he represented some lesser-known mixes, with one of them achieving a 3rd-4th place finish in the ESEA Season 27: Intermediate Division - Europe tournament. In October, he joined Make Your Destiny, reaching the semifinals at ESL Championnat National - Winter 2018. Afterward, he won the tournament Epsilan 16 with the team, as well as securing 2nd place in Gaming Gen 7 and Orléans Game Show 2019.
From July 2019 to April 2020, Kevin switched several lesser-known mixes again, without achieving any standout performances. His best result during this time was a bronze medal at the LouvardGame 4.3 tournament with the team XDDD. However, during this period, Rabier also won his first championship title. He played for the Algerian national team at the WESG 2019 Africa tournament, where they took home the gold medals.
In April 2020, the eSportsman received an offer from Vitality. With this team, he achieved his first major successes. He won championships at several tournaments, including Regional Major Rankings: Rio Major 2020 - Europe, Intel Extreme Masters XV - Beijing Online: Europe, BLAST Premier: Fall 2020, and Intel Extreme Masters XVI - Winter. Additionally, he earned silver medals at BLAST Premier: Spring 2020 European Finals, ESL One: Cologne 2020 Online - Europe, DreamHack Open Fall 2020, ESL Pro League Season 14, Regional Major Rankings 2021: Europe, and BLAST Premier: Spring Finals 2022, as well as 1st-2nd place at BLAST Premier: Spring 2020 European Showdown and 1st-3rd place at BLAST Premier: Fall 2020 Regular Season, BLAST Premier: Fall Groups 2021, and BLAST Premier: Spring Groups 2022.
After achieving these successes, Kevin “misutaaa” Rabier decided to move on and, in August 2022, signed with Falcons. He played for them for over 10 months, during which time he won silver medals at ESL Championnat National: Autumn 2022, Thunderpick Bitcoin Series #2, and OMEN WGR Challenge 2023. Additionally, he secured 3rd-4th place at CCT Season 1 Central Europe Series #1 and 1st-4th place at ESL Challenger League Season 43 Relegation: Europe.
In August 2023, he joined Into The Breach. His success there was more limited, but he still managed to win a few awards. These include a bronze medal at Polska Liga Esportowa Superpuchar 2023, silver at RES Western European Masters: Fall 2023, and gold medals at the CCT Season 1 East Europe Series #4.
After that, he played for a few lesser-known mixes before joining 9INE. With the team, he won gold at FASTCUP: CSGORUN Cup Season 1, silver at European Pro League Season 17, and secured 1st-4th place at CCT Season 2 European Series #7 Play-In.
In early 2025, Kevin moved to Little Red Door but did not achieve notable success with the team. As a result, he began seeking a change, and in March 2025, he joined Mercenaires. With his new team, he participated in the PGL Astana 2025: European Open Qualifier #1 tournament and contributed significantly to winning silver medals at the event.