Originally Posted by Iron Warlord
There's a special move tutor that can teach your pokemon any previous move it has forgotton or "should have learned younger", and he does it in exchange for an item called a heart scale.
If it doesn't do it, don't worry about it, I can always breed another scyther if I need, and for now quick attack will suffice.
EDIT: Do you have time to try now?
yep, get on wifi now, im coming on. lets try this out :)