In response to readers asking about Machamp and the Regis, I chose not to include Machamp because there isn't a realistic way for it to hit competitive damage points without either too much setup, or damaging itself. I almost included the Regis. With enough non-EX Pokemon in the XY-on format, I figured Regice would be forgotten. Regirock can hit some big numbers, but even with damage modifiers, not enough to knock out a Mega Pokemon. Registeel came the closest to showing up in the article, but I decided for similar reasons to Regice, to cut it. In a metal deck, it makes sense. I predict that if Float Stone and Keldeo-EX get cut, a mono-metal deck won't compete well. Pokemon-EX also have low energy costs and Mega Turbo potential, count that as another strike against Registeel.