Platform, device version and operating system:
Screenshot or image:
What you were expecting to happen, and what actually happened:
First playing arena, later in a delve, AI team matched skulls with a doomskull and killed my first two troops with one hit. It seems the double damage bug was also involved as one AI troop had seven attack and it killed a troop with about 25 hit points.
How often does this happen? When did it begin happening?
I had it happen maybe four times in seven arena matches and in the second room of a delve, which obviously was lost soon after. All after the 5.6 update.
Steps to make it happen again
Play any match where losing costs more than half minute of your time or the AI team is higher level than 20.