Top 13 Champions that has gone longest without a skin [05/23/2018]

Many of the champions on the previous lists have finally gotten skins I think it's time for an update. Props to Entropy Aether and Prankenstein for the last two lists. Entropy Aether's list: https://boards.na.leagueoflegends.com/en/c/miscellaneous/EkAY8qnw-top-10-champions-that-has-gone-the-longest-without-a-skin-111416 Prankenstein's list: https://boards.na.leagueoflegends.com/en/c/general-discussion/WKnjAkPf-top-10-champions-that-has-gone-longest-without-a-skin-080817

1. : 2,270 days || 6 years 2 months 19 days || Battlecast Urgot
2. : 1,409 days || 3 years 10 months 9 days || Hazmat Heimerdinger
3. & : 1,148 days || 3 years 1 month 21 days || Surprise Party Amumu & Definitely Not Udyr
4. , , & : 1,122 days || 3 years 26 days || Guardian of the Sands Rammus, Skarner, & Xerath.
5. : 1,119 days || 3 years 23 days || Risen Fiddlesticks
6. : 1,108 days || 3 years 12 days || Blood Moon Zilean
7. & : 1,098 days || 3 years 2 days || King of Clubs Mordekaiser & Wild Card Shaco
8. : 1,084 days || 2 years 11 months 19 days || Order of the Lotus Irelia
9. : 1,078 days || 2 years 11 months 13 days || Prehistoric Cho'Gath
10. : 1,062 days || 2 years 10 months 27 days || Pool Party Rek'Sai

Statistics based off of [05/23/2018]

Like Entropy Aether and Prankenstein before me: I am not saying that they need skins or anything. If any of my information is wrong, please forgive me. I do not count chromas. The main intention of this post is to inform and update.

Thank You. Edit: I know this is now 14 Champions but, I was informed that Shaco also hasn't gotten a skin since the high stakes skin series release.