They are very rare to find, but they have always been that way.
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Must be like, Unown rare then
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Not unown rare, but rare. When scanners were still active I used to see ~1 a day in my city. They come with a nice 1k dust bonus.
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I’ve caught two wild. One was during the triple stardust event (3000 stardust)!
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That's crazy. I had no idea, never even saw them on a scanner. Caught two wild Unowns but never seen a Chimecho. Guess I caught it at the right time, I didn't even noticed the stardust boost!