Weird trend in Nunu's playrate
If you look here: http://www.lolking.net/champions/nunu#statistics at Nunu's playrate while he was on the free rotation last week you can see that his playrate actually went down from before the free rotation. The exact change for each day is:
0.00% -2.15% -2.28% -1.52% -0.96% -2.38% -2.12% -2.80% -2.99% Starting at day 0 (Monday) and going to day 8 (Tuesday after)
None of the other champions in the past 3 months I've been collecting data have dropped all 7 days they were on the free rotation. Some drop on Day 8 (After the rotation has ended) but none have dropped every day. Does anybody on the gameplay boards have any theories for why that would happen? It can't just be from random chance, that's too big and consistent of a drop to be classified under random chance.