@
Jolteon set: While I can see wise glasses helping with some damage, it doesnt seem as powerful just for the aforementioned loss of speed. I feel like expert belt is better to hit things like hippowdon and bulky ground types that like to switch in on thunderbolts anyway~
Gengar @ Black Sludge
Trait: Levitate
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature
- Substitute
-
Will
-O
-Wisp
- Shadow Ball
- Focus Blast
Anyway, here is something Ive been using myself, with mild success. Gengar pretty commonly runs Substitute on any given set bar choiced, and most commonly with Disable. So, setting up a sub with gengar usually means you'll have disable or pain split (or hp fire, but thats less common). Its fairly easy to bluff disable regardless, if you sub up while a threatening attack is obvious. After this, they'll switch predicting you to disable, or they'll use a different attack, getting burned in the process.
The merit this set has, that some other bluffs dont have, is that will-o-wisp is still useful even after you've revealed it. Instead of aiming to stop a pokemon from using a move, this set aims to cripple said pokemon. The set pretty much plays the same as disable anyway, so its not really that obvious, giving it another perk.
(Heres an example of a bluff at the beginning of the match:
http://pokemonshowdown.com/replay/oucurrent-47026007 . He figured I would disable his Power Whip, and used Stealth Rock while I crippled him. The rest of the game is just meh after that.)
edit: To reply to the topic, bluffing in pokemon is a huge asset in competitive play. Whilst standard sets rightfully have their respective place as standard, having something different or less common(but not a gimmick), while still playing the same as if you had the standard set, is a good way to get the edge on a battle at any point in the game.