My friend is looking for a Scyther with its hidden ability and is offering a shiny Eevee (6IV), and if the Scyther is holding a metal coat they'll throw in another shiny!
(I've known my friend for years, seen them breeding pokémon and chain tons of times so I can guarantee the legitimacy of the shinies.)

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Aaaaaaaaaaand I got it for them. Yay.