s+
Talus: Overcharge op can destroy anything in its path.
Vivian: Hybrid Mini Tank and High Damage; Very hard to flank her without being low health.
Terminus: If used correctly he can live for ages. He's a raid boss you can't kill him alone.
s
Viktor: Has more Damage than Vivian but he can get farmed by a good flank especially Talus.
Androxus: If played correctly he can honestly be at the S+ tier
Skye: She has both damage and healing what is more there to say. But can get countered by Vivian and Tyra
s-
Ying: This may sound stupid but Dps Ying with another healer is op and very annoying to go up aganist.
Jenos: Give is teammates 15% Damage boost along with burst heals.
Grover: His cripples and healing can literaly carry games.
Raum: If used correctly he can make so much space for his team.
Tyra: A lot of people think Tyra sucks but her Mercy Kill with 20% Damage Reduction is op.
Kinessa and Strix: Nothing is beating Snipers when is comes to range. Use this range to your advantage.
Khan: Is a very good off tank. Vortex Grip is op, It's basically inara ult with a short cooldown.
Storm of Bullets = Fat Viktor
a+
Torvald: Is Only good when you have a good flank.
Maeve, Evie, and BK: Very hard but if mastered can be at the SS tier.
a
Koga: Good in low-med MMR but struggles in high mmr. Need a jenos or and Torvald pocket to be played in high elo.