The Pyroak set Umbreon Dan posted is truly monstrous. I almost always have to sacrifice something to stop it. However, I noticed that Stratagem can check it well.
Timid Stratagem w/ 176 speed EVs will outrun Jolly max speed Pyroak, and it's Paleo Wave (assuming 252 special attack EVs, but no Life Orb) will deal ~72%-84% to min/min Pyroak. Furthermore, Pyroak's +1 Adamant max attack Life Orb Flare Blitz will deal ~89%-94% to min/min Stratagem, so Strata has a chance to switch in if there are no rocks out.
(I lost all my actual calcs, but I know what they were.)
Stratagem, however, is mostly walled by Revenankh. Stratagem's Timid Life Orb Shadow Ball does 40.3%-48% to 252 HP/56 SpD Careful Revenankh. All its other attacks will do little over half as much. Revenankh can then OHKO with Hammer Arm, or finish off a severely weakened Strata with Shadow Sneak or Sucker Punch.
I also tried this lead Syclant:
4 HP/252 Att/252 Spe
It taunts, then sets up one or two layers of Spikes. It doesn't do much else. You can give it special attacks, but...it will still do the exact same things while it's out. HP Grass will kill Swampert, HP Electric kills Gyarados and Ice beam might hurt the rare lead Stratagem enough that Revenankh's Shadow Sneak will kill it. However, in most cases, you should just focus on getting spikes up.
The only leads I've actually faced with this guy are Swampert and Stratagem. Against Swampert, I can generally stop its rocks and then Spike twice. If Hydro Pump misses (or if Swampy doesn't carry a strong neutral move) then I get three layers up and laugh. If I see Strata, my first instinct is to bring in Revenankh.
I don't know how it fares against most leads, since few people actually go on the CAP ladder.
Needless to say, this set completely shuts down most Fidgit. And, needless to say, Your ability should be mountaineer.
Last edited by Numerator; Jan 24th, 2010 at 1:19:59 AM.
Reason: I forgot to include my testing experience for Syclant.