RE: Round Deck in City Championships?
I have yet to see a Round deck place high at a competitive event, or for that matter be used at all. Stage 2s simply aren't viable at the moment due to Seismitoad-EX, but even before Furious Fists (last season) you didn't see this deck at Premiere tournaments. Starting with a lone Meloette-EX has high odds, and can be downright dangerous (compare to starting with a lone Jirachi-EX, which sucks but since you only run one it doesn't happen often). They are easy bait for Mewtwo-EX as well as VirGen, which can Red Signal themfor an easy two prizes. There's also no versaatility in the deck, as every Pokemon you bench needs to have Round or evolve into something that does. A support Pokemon like Jirachi-EX or Electrode, or even a backup attacker/tech on your bench will rob you of a critical 30 damage.