Well, I don't post movesets here. I find it difficult to come up with new and interesting sets.
"There are so many movesets it can have."
Ah so true, dear trachy.
My annoyer Mew which I like to use in UU.
MewMew(Mew [duh]) @ Leftovers
EVs: 248 HP / 252 SDef / 8 Spd
Well now aint this cozy. A Special Wall Mew. Will-O-Wisp screws physical attackers, set up substitute, roost to your heart's delight. Psychic hates them guts abilities like Machamp and a few others who take a stroll in UU. Synchronize is also a hatin'. Cripple the cripplers as it is.
The most effective way to date for me to counter Heracross, is to set up a sub before he comes in, and then attack him with psychic. If I don't have that Sub up then I get OHKO'd by Megahorn. Guts ability prevents me from crippling him as well.
What else to say? I love it. Beautiful.