Talk:The Tower Dedicated to the Sun/@comment-176.64.251.95-20180114141413/@comment-2600:1700:10E0:C070:C02D:AEB8:446D:4E16-20180114191051

Has to be better than that. Otherwise as x approaches infinity, x being battles, you'd average 1 rune boss every 100 battles and since you can only generate about 32 battle points a day you'd only see a rune boss on average about every 3 days over an extended time period.

My guess it's closer to 15 to 20 % of the time. There are some frustrating dry periods of bad luck. I've gone 2 1/2 days without 1 rune boss before. But that was an extreme outlier.

Some people have said changing difficulty has caused a rune boss to pop, but I'm unsure whether that actually works or as is most likely a placebo/superstitious action kind of like blowing on dice before rolling