I think banning Leppa Berry is the ideal solution, and I think immediately nuking almost every possible endless battle* is a far higher priority than preserving maybe two sets per generation.
Like honestly, I'm just not really seeing it. Endless battles are uncompetitive in the sense that they are the antithesis of competition; rather than win, they seek to trap the opponent in a game where both winning and losing are impossible. They are basically just trolling in gameplay form. How much does "competitive relevancy" really matter in this situation? Are any of these Leppa sets so vitally important to the formats they're played in that banning Leppa upends the format? Is the average player really losing anything from a Leppa ban? Even if any of these sets are standard, do we really value them over removing the ultimate uncompetitive strategy?
* Banning Leppa doesn't technically answer every possible endless battle, since Leftovers Struggle in old gens can still happen and Pure Hackmons still has double moves**, but I believe keeping a rudimentary EBC for those cases is fine. Banning Leppa Berry should answer every single other possible endless battle, and if something else shows up, we can take the hammer to that too. Any "not technically endless but might as well be" game states can probably be covered under this as well.
** I realize the intent of Pure Hackmons and similar formats is "if you can hack it it's legal," but I stand by my belief that every possible endless battle should be stamped out with force; if this means removing double moves from the format, then so be it.
Like honestly, I'm just not really seeing it. Endless battles are uncompetitive in the sense that they are the antithesis of competition; rather than win, they seek to trap the opponent in a game where both winning and losing are impossible. They are basically just trolling in gameplay form. How much does "competitive relevancy" really matter in this situation? Are any of these Leppa sets so vitally important to the formats they're played in that banning Leppa upends the format? Is the average player really losing anything from a Leppa ban? Even if any of these sets are standard, do we really value them over removing the ultimate uncompetitive strategy?
* Banning Leppa doesn't technically answer every possible endless battle, since Leftovers Struggle in old gens can still happen and Pure Hackmons still has double moves**, but I believe keeping a rudimentary EBC for those cases is fine. Banning Leppa Berry should answer every single other possible endless battle, and if something else shows up, we can take the hammer to that too. Any "not technically endless but might as well be" game states can probably be covered under this as well.
** I realize the intent of Pure Hackmons and similar formats is "if you can hack it it's legal," but I stand by my belief that every possible endless battle should be stamped out with force; if this means removing double moves from the format, then so be it.