About a month ago, I was killing it on all sorts of cover packs. I was getting all sorts of 3 and 4 star characters out of every available pack, and at a decent rate. Since your “fix” I have only received two stars from Heroic and the occasional 2 star from standard. What actually happened? It would seem that your fix was in the other direction. My wife even noticed that my only tokens are pretty much bottom-barrel. Heck, I haven’t even received a single three star for fighting Ultron as a reward in the packs. What happened?
Your above average draw rate is normalizing. Be happy that you beat the odds for so long, and stop buying cover packs.