About the Calculator
The calculator is based on a logistic regression model using team size and the presence or absence of each hero, villain, and environment as predictors. Separate models are used for solo villain and team villain games.
There's currently no interaction term (accounting for how well heroes or villains do when paired with each other specifically). That might be a feature added later.
Think the number is way off? You could be right! Submit more games and make it better!