Must've missed this one while it was up for discussion in smithy. I really like it though, so I will have to keep an eye so I can give it my vote when polls refresh for gravity.
Halving attack is a very nice "soft" CC and should see some fun applications (among others, its a nice response to AM and dive), between that and bumping skill use costs it should be quite versatile.
It should make a valuable addition if it makes it into the game.
Good luck in the polls