- Attack his serve, it's probably one of the easiest balls you'll get to hit in the rally.
- Don't let him dictate rallies, take the ball early and try to push him behind the baseline.
- Drop shots are useful, although Nadal is fast he falls for the drop shot quite often as he stands far back.
- Play extremely well and hope he has an off day
Rather good points there... except the drop shot. He seems able to catch all of them but the best of the breed, even when standing 4 yards behind the baseline. And then often kills them with ease.
I'd say (on top of your suggestions): you need a monster 2H BH, hit it deep and strong into his forehand. His forehand is an awesome weapon when he has time to actually execute it (on clay, it's more often than not); but otherwise, it can be broken by relentless bludgeoning.
Also, a monster 1st serve would be useful if you could get a ton of service winners or at least weak returns for easy putaways or something.