How to counter Aurora
Let us take a look on how to beat Aurora. We will look at champions who are strong against Aurora and who are weak against Aurora. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Mid champion who counters Aurora. You can already win in champion select with the right counters for Aurora. If you want to know how to counter Aurora then you need to take into account the best picks vs Aurora and the worst picks vs Aurora. This Aurora counter data is based on matches played by Pros on patch 15.14 and previous ones. It is important to see whether Pros counter picked Aurora or whether they played as Aurora.
Champions used by Pros to counter pick Aurora
Looking at the matches from Pros (see table Pros counter picked Aurora) we can see that they picked 
Ryze most often to counter pick Aurora. The matchup Ryze vs Aurora occured 33 times. Aurora has 15 wins and 18 losses in this matchup. Learn how to counter pick Ryze to get another perspective on the data.
Lane outcome for Aurora
When looking at Aurora counters you will notice that win rates alone are not conclusional. Therefore we provide an overview (see table Lane Outcome) where you can see the lane outcome of Pros who played Aurora. The lane outcome of Aurora consists of three outcomes: Win, Loss or Draw. Let's take a look of Aurora lane and match outcome for specific matchups. Considering the lane outcome and the match outcome of a specific matchup, might enable you to find the right counter for Aurora.
Conclusion
Analyze the available data and learn how to beat Aurora. To master Aurora take also a look on Aurora builds and runes for Aurora. Good luck, Summoner!