Crash & Claw

[WireFrame]

It reminds me of Shotokan's Age-Empi block. Useful and adaptable. A pretty natural reaction too.

[sensei8]

The use of the elbow as depicted in this video appears an exceptional block/guard. But the cat scratch stuff is exactly that...stuff...ineffective. I concur with the palm heel strike because that technique should be enough to allow one to escape, but, not the cat scratching stuff. Not every defender will have fingernails long enough to do any damage. Sure, other things can be done, for example, eye poke/gouge or hair grab or some other strike to the face area.