I'm not supposed to approve or refuse OU related stuff and I didn't play OU in few months but I think it's necessary to state an article about Sableye stall in ORAS OU has already been written few months ago and it's basically the only good thing that stall got in ORAS (that and Landorus getting banned) and probably one of the biggest types of stall out there, you can find it
here. Your suggestion is a little bit more general so it may be accepted, the OU QCers are able to determine whether this is a good idea or not.