Gliscor / Spiritomb is an annoying deck, but even if it does take any tourneys (as a poster stated earlier), I don't doubt that it will run out of the steam as the format becomes more and more competitive. The deck itself isn't that effective, and thinking clearly in a game will get you out of the lock.
The flaw is that the strategy requires a reliance on low-output damage, preferring to provide a makeshift trainer / status lockdown to kill the opponent's Pokemon. I use makeshift because firstly, it expects that the opponent does not have an alternative to warp point or switch as retreats, and relies on minimizing Power Sprays.
Most of the flaws are in Spiritomb's wording. It must be active, and the trainer lock affects both players. That means that while the opponent might have 'locked' you, they cannot really prepare that well either. This shuts down most variants running Fishing Engines, which usually would be the biggest threat (given that it gives the quickest set up), so Gliscor / Spiritomb decks are generally moderately slow on the setup.
Of the variants I've played against the weakness of the Gliscor / Spiritomb deck is that it relies on the opponent thinking conventionally to defeat, which is a glaring problem since many more experienced players will easily find ways around the lock. Bodies such as Recover Mechanism and Dawn Stadium will destroy the strategy entirely, meaning decks that are water-based are near autowins.
The strategy also relies on players having little backups or Knockout Counterattacks. Any deck running Luxray GL can easily Bright Look to take out the benched Gliscor, disrupting the chain.
Leveling Up rids Pokemon of their status conditions, which is only a Bebe's Search away.
Gliscor must be Active to initiate Shoot Poison, so Power Sprays will kill the strategy.
The majority of Gliscor decks are fairly easy to work around, so it's not a huge threat. However, I understand that circumstantial evidence supports the Gliscor deck, and I will admit I've played against one or two Gliscor / Spiritomb decks that have outright frustrated me to no end, but the majority of them require a bit of thinking and generally there are one or two ways out.
And yes, nobody in particular thought of the deck. I'm sure most people anticipated it when translations for Spiritomb were released.
I'm aware of every "counter" and I played against several and was able to cope with them. Still not saying I "made" the deck or that its significant that I won a CC's with it week 1, and I know a handful of people who have their's built similar to mine. Anyone expecting to win with Gliscor should know of whatevers been said in this topic already and have some sort of way around it. I really do hope people keep the idea that this deck is easy to beat.
