Rafael made his competitive debut with Carpe Diem in the winning game of the 2015 SLTV StarSeries Summer Season Week 3 against SolarWind on Irelia with a 8/3/5 KDA, only just replacing Carpe Diem's previous toplaner Sleeping. Doxy and his team finished 4th in the Summer Split with 9-5 game record along with Dolphins of Wall Street and RoX. Carpe Diem lost both tiebreaker games, advancing into the playoffs instead of getting into the offline finals directly. They beat Team Just in the playoffs 3-2, before suffering a 3-0 loss to Hard Random in the semifinals. In August, Rafael joined xPerience eSports Club to compete in the 1st split of the Season 9 Liga de Videojuegos Profesional. Two months later after that, Doxy was no longer a part of both teams.
Doxy showed up at Vega Squadron roster in LCL Spring Season Week 3 game against RoX as a substitute for NoNholy. Before NoNholy moves back to starter, Rafael participated in another four games for the team.