Is there? I would like to know when the player is blocking, is attacking and is powerattacking. I would do this in the GECK with GetPCAnimSet, but does anybody have an idea what to use now?

Also, would OnWardHit work for Spellbreaker?

The closest thing I could find: http://www.creationkit.com/OnAnimationEvent_-_Form

Combat CK functionality seems to be very limited from what I can see.