you need for this 3 cards:
Anti reverse-delta crow + 1 monster + 1 BW

too easy, set all spell/traps in your hand (if there's 3 it would be great), set a monster (don't the BW)... your oppenent will think that you have morphing jar, he'll set all cards in his hand... then during your turn, you summon a BW and activate delta crow to destroy all his face down spells/traps then you will have the control of the duel because your opponent will play a duel without spells or traps.

This combo worked for me the most of the time... but sometimes your opp. don't care to all your face down cards, or because his hand is full with monsters

Ok, the main problem is that it requires you to both set and summon a monster, which is not gonna happen often. Then, you have the other problems that the combo is very situational on your opponent's move which is never a good thing. A good combo shouldn't rely on your opponent "stepping into it." So really, all you're talking about is how to bluff with BW's. It's not much of a "combo" at all.

EDIT: not to even mention how much crap you are in if opponent hits you with Heavy Storm while you're attempting that bluff >.<

nekos right, but i see this as an occasionally good play, especially if you open with solemn to negate heavy. its basiclly a win if you get it off, so its a good idea occasionaly.