No. its a boost pivot grab essentially, just harder to pull off. Trust me, normal boost pivot is better, and does the same thing. and it doesn't draw them in, you're just doing a boost pivot grab backwards.
just wait for r00kie, he'll come in and point out how useless this is for fox.
Meh... I don't really value Rook's opinion on everything, personally.. he's right sometimes... but not god or anything.
I need to try this more... there's a good chance that, yes, this is useless... but if it is applicable in any way, than it might have uses... mainly, the only real difference I could see for this from a normal boost grab (PWG) would be placement after a grab... sliding backwards would be nice at times, if it works at all... it may very well not be worth it, but I think it should at least be considered before being dropped.
one thing that this would do is act as a sort of wavedash back, in order to punish a roll behind (with no care for whether the grab lands or not...)
In that manner, it punishes both a shield or a roll behind... Also, if this has the same props as normal PWGs, the grab will be a bit late, and since the spacing is so hard, grabbing a slightly early spot dodge seems viable too...
I'm not really arguing that the attack is useful, yet... I just think it could use a bit of discussion/trial before trashing it.