Originally Posted by Fat flea
Gengar @ Focus Sash
Nature: Timid (-Atk. +Spd.)
EVs: 4 HP/ 252 SpA/ 252 Spd.
This is a really cool set that beats the two kinds of Pokemon that are most likely to give Gengar trouble in the OU metagame- (1) those who are faster and that can OHKO Gengar, and (2) Those who are slower and can 2HKO Gengar while avoiding being 2HKO'd themselves. Counter+Focus Sash allows you to live the hit and KO back when hit on your extremely weak Physical Defense side, while Destiny Bond can take down problematic Pokemon for your team that the opponent has in thinking that you're sacking Gengar. Especially fun is when you use Counter and get a kill while going down to your sash, and then net another kill if something slower and bulkier comes in to finish you off. Definitely worth a look if pokemon that give Gengar a lot of trouble (Tentacruel, Jirachi, Powerful Scarfers) give your whole team in general trouble. Sub is great but Focus Blast gives you much better coverage and sub has poor synergy with both Destiny Bond and Focus Sash+Counter
That set (but with thunderbolt over focus blast) have been used in the battle tower since 2007 or 2008, so it's not very creative.