Greil is a Super Smash Bros. Ultimate Wolf and Richter player from Nice, France, considered as one of the best Wolf mains and the best Richter player in Europe. He is also considered as the best player from the southern part of France. Greil is currently ranked 3rd on the French Ultimate Power Rankings and 24th on the European Smash Rankings.
In Super Smash Bros. for Wii U, Greil was formerly ranked 4th on the Smash 4 French Power Rankings. He was already known as the strongest player in the south of the country, maining Mario and Corrin as well as Bayonetta. Greil has wins over most of the top 10 in France such as Neath, Mana, Fire and Homika.
Greil played before for the French esports structures MadCorps, Oserv ESPORT and Konix Esports. On July 4th, 2019, he joined Supremacy.