How to counter Morgana
Let us take a look on how to beat Morgana. We will look at champions who are strong against Morgana and who are weak against Morgana. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Support champion who counters Morgana. You can already win in champion select with the right counters for Morgana. If you want to know how to counter Morgana then you need to take into account the best picks vs Morgana and the worst picks vs Morgana. This Morgana counter data is based on matches played by Pros on patch 14.23 and previous ones. It is important to see whether Pros counter picked Morgana or whether they played as Morgana.
Champions used by Pros to counter pick Morgana
Looking at the matches from Pros (see table Pros counter picked Morgana) we can see that they picked 
Nautilus most often to counter pick Morgana. The matchup Nautilus vs Morgana occured 9 times. Morgana has 4 wins and 5 losses in this matchup. Learn how to counter pick Nautilus to get another perspective on the data.
Lane outcome for Morgana
When looking at Morgana 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 Morgana. The lane outcome of Morgana consists of three outcomes: Win, Loss or Draw. Let's take a look of Morgana 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 Morgana.
Conclusion
Analyze the available data and learn how to beat Morgana. To master Morgana take also a look on Morgana builds and runes for Morgana. Good luck, Summoner!