Here is The Arena's Viability Ranking of Effects from OP Rank to F Rank. OP is the most useful choice on your team and F is not recommended. Some old effects may not be covered in this ranking.
Effects
These effects are either leaked to exist or haven't had enough time to be properly felt by the meta.
Rank
Effects that are super broken and can easily impact your matchups.
Fear | Mega Baby Reversion | Maximum Life Decreased | Mega Time Stop | Nanovirus | Random Negative | Phantom | Trait Disable |
Reverse Healing | Total Blind | Umbrella Hater |
Rank
Effects that are while not as strong as the ones in OP, is still somewhat impactful.
Rank
Effects that are above average and useful to have.
Rank
Effects that are basic, straight forward and average.
Rank
Effects that are situational, but still somewhat has their niche.
Rank
Effects that are pretty weak and aren't useful in 95% of the cases.
Rank
Effects that are complete dogwater with next to no impact.