Blazieboy [#36]
Triple duelist by BR hmm? Didn't watch the BR scene last year but I think TSM were the team that used the 3 duelists of Phoenix, Jett and Raze/Reyna during first strike.
Astra- Viper combo was more popularised by Sentinels and V1 during Iceland so that's more of an NA thing I guess. EMEA preferred Brim-Viper
BR teams used the three duelist meta since Reyna's patch, as most here thought the character alongside Raze/Jett was too strong. The map that was used the most was Haven, if you look for clashes since the beginning of the Brazilian scene, you will find teams using these compositions of three duelists. Over time, they decreased to 2 duelists, until today practically only Jett dominates the compositions (except Mwzera, he is one of the few who plays more Raze/Reyna than Jett).