"Does using a repel from bag increase the frame?" No. "Also, how rare is it to get a low IV spread frame to allow me to hit the nature I want?" This question doesn't really make sense. Getting a low IV frame with a good spread is not very rare. For a given seed, you can pretty much get any nature you want. "Also... is there a way to breed for 31 IV eggs yet?" Yes. People are writing tutorials. Please be patient and / or read through the Gen 5 RNG help thread, which contains the answers to a lot of your questions. I like to be helpful, but I don't have so much time to answer these general kinds of questions. You're much more likely to get a response on that thread.