I wasn't talking about established decks. I never even said anything about established decks. I said if you can make a semi-good list (and how hard is that? Seriously, if you know what the concept of the deck is going to be, the deck should take maybe 10 games to get a solid list) you dont' have to playtest. Just because the deck is "rogue" doesn't mean it doens't have established aspects. For instance, 4 corners is a concept that has been used several times (4 corners, r-gon, haymaker, ect.), so the basic strategy is the same on a paper. Sure, the pokemon are different, but if the concept is the same, then not alot of thought has to be used in making the deck. I mean, I guess if theres a new strategy to be made that nobody has used in the past, then yes, you will need to test it enough. Eeveelutions is such a deck, as nothing before it really compares to how it ran. The hardest part of making a rogue deck is finding a concept that can beat the archtypes (or the majorty of the feild) and then crafting it to be consistant. After getting the pokes down, the rest should be simple. If you're running speed, cess. crystal and beach, ect. You can test different engines to try to make it faster/more consistant, but if your gernal concept is good enough, you shouldn't have to do this very much.