I (S3) strongly consider to main viper. What piece of advise would you give to me? So far, I mained jett but also often played brim and sage. Also, do I need to learn lineups to become a good Viper main? Thanks!!!

I was looking through old twitch vods and i saw these two player cards and i used to love them but theyre no longer on my account. were they beta valorant cards and just not in the game anymore? or is there a way to get them back and i just...