In this post I provide evidence that battles are lost because the paid developers suck at their job and leave bugs unfixed even when posts have been placed in the bugs section of the forum.
In this battle during round 2 Sunnyboys's Violet Sniper Killed Spamm2 (screen shot 1) and should have been disarmed when Mona entered the battle from back up and was not (screen shot 2), then in screen shot 3 the infamous zero HP issue that has been around forever and I see it all the time, sometimes on multiple heroes
I suspect the devs are too lazy to implement certain battle skills from back up correctly as it would require a lot of code rewrites
Screen shot 1

Screen shot 2

Screen shot 3

http://ue1-loa.gtarcade.com/share.php?sid=39005900000877&pkId=11767ffd9cac1026