Do you ever wonder whether Stormsmite Mauls or Tempest Blades are going to work better on your Sequitors? Or whether Bladegheist Revenants or Grimghast Reapers will perform better against 7 crypt ghouls?

I did, but different models have different trade offs, and sometimes a special ability is important. And what about rerolling ones? Writing multiple spreadsheets gets tedious, so here's a calculator to help work out the expected combat performance from any model or unit in Age of Sigmar.