I think there's a lot of confusion about the 'Blade' name. I don't believe it's a separate gene, it's a descriptor for a reduced pattern in Clowns, i.e. you can't have a snake that's Blade without at least being het for Clown. It's similar to Enchi Clown in appearance except that you can't separate out the Blade like you can with Enchi. You have a Blade Clown if the pattern is reduced and there are no other genes at play to reduce the pattern.