This idea has been bouncing around my head for a while now, with how meta-warping multi-prize Pokemon are. It's not just the power of their attacks or high health - even decks that don't primarily run these cards are designed specifically to tackle them. We are losing a ton of interesting possibilities with decks that cannot consistently outperform obviously superior cards. That's why I believe a Single-Prize Only format wouldn't be just "best Standard/Expanded decks that don't run EX/GX/V", but an entirely new beast. Without the pressure to compete with massive health pools and ridiculous damage, baby decks have a free reign to tech against stall - and decks like Blowns, focused on dealing 250+ damage will be dramatically inefficient. Perhaps the largest audience for such format would be beginners, playing in larger leagues, where they'll inevitably butt heads against multi-prize decks. A format that doesn't force them to either "fight them or join them", but allows for creativity at a relatively low price-point could be a great way to ease them into the game. However, if PTCG doesn't change its course, I believe more and more regular players will become disillusioned with the Standard format and start looking for an alternative (and given the recent article, Expanded isn't having a great time either). Unlike many format concepts I have seen, which generally focus on tweaking the rules, this one has many advantages - it's very simple to explain, it has precedence (Magic's Pauper) and a clear niche to fill. I will be discussing this format with my League's players, but I'd love for others to test this format. Pick up your favorite single-prize rouge decks that couldn't outperform Turn-2 200 damage, and play them against each other. I know I have at least a couple of evolution lines I wanted to try out.