I highly recommend training a Geodude until it learns Rock Throw. This does 4x damage against his Scyther and resists Normal-type moves (it uses Slash), so he can't do much to you.
You can catch a Geodude in Union Cave.
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I couldn't write anything on your message board but I guess I'll ask on here. Do you know how to deflect the Scyther's Uturn move? I've got a level 22 evolved version of Chikorita, a level 4 rattatatatatata, a level 13 hoothoot, a level 3 topegie (forgive my spelling), and a few others that are like level 1 but have hypnosis and extrasensory and blah blah blah. I've beaten the cacoon dude and the Metapod but Scyther gets me everytime with his UTURN.
You need to training a Pidgey/Pidgeotto to beat his Scyther or his other bug pokemon!
--Nectaria
Chat with our AI personalities
He disappears until you beat the Pokemon league again.
beat the 8th gym
after you beat whitney.
you beat the last gym leader in johnto
you have to beat the last gym leader