Hello! How much would a wolf with an extra-toes defect go for? I looked at the trading post and didn't see any for sale. Are they really rare?

Can you provide the wolf's link? There's a number of things that play into what people will say determines the worth of a wolf.

As for extra toes being rare or not, it's not anymore rare than any other defect that's not a coat defect. Most people just view defects like extra toes as a worthless defect