Mirror demons reflect damage, a really cool ability which I had never experienced until today.  However I found a possible bug when fighting an enemy with the Maul ability. 

Scenario is this:  Mirror Demon v Bear Cub, the Cub is very wounded and about to die.

1.  Bear Cub attacks the demon, hits and inflicts X damage.

2.  Mirror Demon reflects X damage back, which is enough to kill the bear.

3.  The bear doesn't die!  Instead it makes another attack due to the Maul trigger. 

In the example I personally observed the second attack missed due to a dodge, the maul chain ended, and the bear died.  However it looks like the bear could have continued mauling the demon?  I have seen effects go off in the middle of a maul, Counterattack springs to mind (Bear / Counter / Bear continues), and the Counterattack can in fact kill the bear and stop the maul chain.  However it looks like Reflected Damage might not.