I've currently been solo queueing games and on a big loss streak, I was wondering what would you consider to be the best agent for solo play and still be able to help your team out?

Just need to vent a bit, title says it all. After my placements when I started doing comp I got placed in bronze 1. After months of grinding I actually got good, dropping 20+ kills almost every game. (An improvement for me anyway). I got up...