My Lunar Revel Skins changed
Gyazo
The Graves and Alistar skins changed after i had seen them (pool party Graves, Sweeper Alistar) to Hired Gun and Infernal
8 Comments
They changed skins that are on sale this month, so you get a chance for different skins
And the Riot confirmation: https://www.reddit.com/r/leagueoflegends/comments/435wvr/psa_all_skins_that_are_scheduled_to_be_on_sale_in/czfqlwj
I'm leaving this post here for Riot staff as it has to do with this issue and the RP Purchase Error that came with it.
I had a very similar issue with Jinx just now. I was going to buy Mafia Jinx/Jinx at 70% off only to find it updated with Firecracker Jinx/Jinx. I believe ( but am not sure that ) the resets are intentional. When I tried to buy the updated Jinx set though I found the shop had an error with the Jinx skin and other skins were still able to be purchased. You can read in detail ( steps to recreation, etc. ) about it here.
Nasus and Alistar at 70% off?
You're lucky. I got Forsaken Olaf as my only 70% off.
The skins that are being replaced in your Lunar Revel Shop are scheduled to go on sale either in January or February. We don't want you to get a Lunar Revel sale only to see it in a regular sale over the next few days, so we have replaced those sales in the Lunar Revel Shop with different offers.