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Looking through GenV stuff, the only things that can learn Defog is Swanna, Braviary, Chatot, Pidgeot and Crobat, those and whatever can learn it this gen (Talonflame?)So you the only reliable Defogger is Crobat
Defog can completely negate both of them. In fact, it's harder than ever to rely on SR or Sticky Web due to the ease of Defog.
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