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I personally dont see that many mons in curent meta that posses that potential to banned due to tera other than Chi- yu(Who lets be real here problably should be banned regardless if tera is or is not in the metagame) and a big maybe on Dragonite, with other big tera abusers like Dragapult,Skeli...
I personally believe that Terastralizing should remain in OU with no action taken at least until HOME comes out, as I feel like that a considerable amount of Pokemon that can abuse Tera to the point of being broken are both few and far between for now and could just be banned themselves instead...