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>Realize what a 50/50 is and why its not healthy,
Pokemon is a game where both players input their intended move at the same time, partially anticipating what the other player will do, and then both moves happen simultaneously based on their decisions.
By the absolute basics of the game mechanics themselves, it is a game BUILT on 50/50s. Not to mention how each player must make decisions based on a limited amount of information when relevant information is naturally withheld from them.
Using your scarfed Landorus-T to EQ a Charizard that hasn't mega evolved? 50/50 you kill it or it's immune to your attack.
A Player aggressively brings in a pokemon that could easily KO yours if it's scarfed, but you could KO back if it isn't and he's bluffing a scarf to set up? 50/50.
Claiming "50/50"s are bad is to say that Pokemon is incapable of being a competitive game on a fundamental level.