Greetings, I don't know how much autoresolve has been worked on(should be a perfect simulation of the tactical battle yet?), anyway, I found that currently Crushing Blow is quite likely being used without regards to the cooldown of the actual tactical battles, resulting in some very favorable outcome to whoever has the skill.

In the next screen you will be able to see that my champion used crushing blow in each and every attack possible, should you play the battle by yourself you'll find that besides the usual turn missed, you are not able to use Crushing Blow in the next turn either, being forced to make a regular attack or defend/use a spell. That should be represented @ autoresolve by the champion using a regular attack in every turn after a Crushing Blow(unlikely that the AI has choosen to defend in that case), but it didn't.

also, I don't know if by design choice or an overlooked feature, but currently Crushing Blow is always landing a blunt type attack, resulting in a very powerfull skill against most monsters, since you can use a high initiative weapon, like a sword, while still having the benefit of a blunt attack type.

Screen:

direct link: http://postimage.org/image/icxu8kitn/