(approved by TDs)
Hello fellow Pokemon Combatants. I want to bring up your attention about a concerning matter in competitive GSC, that is the lack of the Freeze Clause in OU. GSC as a tier, can be very frustrating to your average player as it requires not only long term thinking and planing during a match, but also knowledge of the generation's mechanics and match ups in order to grasp wins. This is due to the stallish nature of the generation, Pokemon have maxed out DVs (basically EVs) and leftovers being an incredibly powerful and splashable held item.
Additionally, hazards in GSC are limited to only 1 spike layer (that is 12% extra damage on the switch), compared to entry hazards like Stealth Rocks, Toxic Spikes, and the ability to use 3 layers of Spikes in future generations. This makes Pokemon in GSC exceptionally tough and forms solid cores that players base their teams off. Stall is widely accepted in GSC player circles, its one of the basic and fundamental keys of the generation. In GSC players want to grasp small advantages every-time, so that slowly but steadily avalanche these advantage into a solid leads, these being Pokemon kills.
Similar to RBY, where a Freeze Clause has been implemented, freeze is a very powerful status in GSC. Due to the stall nature of the generation, a player has ample turns to fish for a freeze. Being frozen in GSC gives you a 10% chance to thaw, at the end of the turn; as opposed to newer generation where the chance to thaw is 20%, and you are able to thaw and then make a move the same turn. This, has game breaking results making freeze arguably the strongest status in the generation (Stronger than sleep because of sleep talk mechanics in GSC allow you to call rest and reset the sleep cycle as well as healing the Pokemon back to full). If you're frozen, not only you're highly unlikely to thaw out but also you lose the turn you do thaw because thawing comes at the end of the turn. Pokemon can set up on something that has been frozen, without the fear of them being damaged on their turn simply because of this mechanic.
With 1 freeze someone may preserve their frozen pokemon in the backline to have some leeway in maneuvering switches and opposing roars to get them eventually to thaw out. With 2+ freezes, its essentially game over. Its exactly due to the nature of the gen, getting such a powerful immediate advantage over the opposing has little to no answers from the player that has been on the receiving end of the freeze.
The most recent example where the lack of a Freeze Clause has affected the outcome of a game was the SPL Finals Game between McMeghan and Mr.378. In this game McMeghan faces a very hard matchup to win, but through his use of Ice Beam Cloyster and Ice Punch Gengar to freeze Mr.378s Umbreon and Snorlax respectively, he was able to pull through a matchup he would never have been able to win otherwise. McMeghan explains this as well in his video describing his game, talking about why Ice Beam Cloyster in order to fish for a freeze due to how easily it can cripple his opponent. This game went from a sure win for Mr.378 to a sure loss due to the ease at which McMeghan was able to fish for the freeze.
Also similar to RBY, in Pokemon Tournaments held in 2000 had the same Freeze Clause used by Smogon in RBY today:
Freeze clause: Each player can only have one PokÃ©mon frozen at a time.
C.) This can be probability management issues; think OHKOs, SwagPlay, Evasion, or Moody, all of which turn the battle from emphasizing battling skill to emphasizing the result of the RNG more often than not.