I had an idea for a Limited Burst format a little while back where pretty much all the current top-tier Layers are banned. Specifically, it seems to me that there are a few Layers that dominate and outclass all others simply because they have substantially better teeth/burst resistance than average, and so nearly all other releases are seen as bad because TT decided to give them less powerful teeth. Remove the small subset of the released layers that are substantially better than the others (which is basically the current top-tier list) and you end up with a game where Burst Defense is significantly nerfed overall, and Burst Attack in general is also cut down to compensate (with the removal of Valkyrie, V2, and Xcalibur as the most obvious choices). By reducing overall Burst Defense across all types of Beyblades, the vast majority of Layers which previously "Burst too easily" (not just talking about Chaos here either; it's a complaint that people have had with almost every single release that isn't currently top-tier) suddenly become viable. Burst Finishes happen more often as a result (but game balance is maintained because weaker teeth still burst first, just the cap for maximum teeth strength is reduced) and the meta becomes far more reliant on the interplay between Attack and Defense (consider a game where O2FX vs K2GO is a common matchup, for example) as opposed to endless Stamina mirror matches, which become far more risky given that Deathscyther and D2 are no longer legal (most likely leaving Chaos or Unicorn as the go-to for Stamina, both of which are substantially more likely to Burst). Also consider that weaker, flatter/rounder teeth do not have the same wearing issues that the more powerful teeth on current top-tier choices like Valkyrie, Deathscyther, and Neptune suffer from; this would greatly extend the life of a competitive collection, making it much easier for those of us without piles of spending money to buy a stream of Valkyries for every competition.