I've had this idea for a while, and would love to head it up, buuut what about an anti metagame gimmick challenge? This would be where people build teams around a strategy that isn't viable against every team (a gimmick) and structures a team to defeat the common OU strategies. Players would then race to achieve a rating, while also discussing the holes in their strategy and allowing further input. I think this would be a great way to explore different areas of the metagame as a collective and not just single players at a time. The strategies would be ones such as Trick Room, Gravity, Wonder Room, Baton Pass, etc. Strategies that are well known and little used, but may have a way to be devised into strategies that defeat the common rain, sun, and hyper offensive teams that are oh-so-dominant in today's metagame.