I am trying to use a male Farfetch'd to pass on Night Slash and Air Slash to an Oshawott. The only problem is trying to get a female Oshawott (87.5 % male, 12.5% female). I put Samurott in with Ditto since breeding is the only way to get more Oshawott, but I've already hatched nearly ten eggs and all were boys! Is there any easier way of getting Oshawott or even just faster ways of hatching the eggs?