User blog comment:AndRollOut/Deck Damage Output Estimator/@comment-12362668-20130731182037/@comment-11482499-20130802041354

13thPrime, the 12% is the probability that a crit hit triggers on each hit. (I'm assuming everyone is wielding R4 weapons by now). That's roughly one in ten rounds. I got the 12% probability from the Team screen - if you edit a bot and tap on any of the weapon icons below the stat block, you'll see all the weapons modifiers applying to that bot.

Of course, luck being luck, a bot might trigger crits far more often then one per ten rounds, or less often. So this is a very bland averaged number that the calc is spitting out to let you know your ballpark.

If I can find a way to calculate average damage AND standard deviation...that would be awesome. It would illustrate the swingy-ness of a deck. Would you prefer a low-damage but reliable deck, or higher-damage but luck-based deck? That sort of thing can be illustrated if I know how to put Standard Deviation into this. When I have time, I'll work on that.