Swapping like crazy gave you two set4 Pokemon in your 15-21 starting 6. Luck gave you two of the best set4 Pokemon in your 15-21 starting 6
Also I think you are getting two streaks mixed up. The one I was talking about was the one with Weavile/Nidoking/MysteryPKMN3 where Thorton was leading with Skarmory4 and it has nothing to do with Milotic. I'm just saying I would have traded for Mr. Mime because Skarmorys (sets 2 and 4 especially) are always a pain to deal with and I would have wanted to get rid of it ASAP.