A deck reminiscent of Glistomb (Gliscor lvX + Spiritomb AR) It did the same thing except via a poke-power.
This is one of the more viable fun decks that can actually win you games, however the thing i don't like is that we have no efficient way of being able to manipulate damage on your opponents field, as ideally you want the defending pokemon to be KO'd via poison during your opponents turn so you can continue the lock. However because of this you may end up knocking something out and your opponent will return KO, and it's obvious this deck will not win in a prize race.
Apart from that, the deck concept seems pretty decent and i won't be surprised if the deck makes an appearance at a couple BRs and maybe even Nationals.