snowdown

There are five icons to earn during Snowdown:

Giftwrapped Poro: To earn the Giftwrapped Poro icon, you must win three matchmade games on Howling Abyss. Meaning, you must enter a queue (NOT a custom game), and win three games. For example, you can enter the Showdown queue or the ARAM queue, but you can’t create your own game on Howling Abyss and have it count towards your three wins.

Santa Gragas Cookie: You’ll earn this icon by sending any gift during Snowdown using the gifting (including Mystery Gifting) feature in the store.

Bad Gingerbread Veigar: To earn this icon, you must win a matchmade game as a premade team during the Snowdown event. For example, you’ll earn the icon if you and four friends queue up in Ranked 5s to do battle and emerge victorious, or if you queue up with a buddy and claim victory in a normal game. The key here is that the games must be matchmade against other players (so Co-op vs AI does not count).

Slay Belle Surprise: Wear a Snowdown skin during the event. Any former skin or any of the three new skins will work. Skins from other holidays, like Kitty Kat Katarina, however, would not. Here is the complete list of eligible skins:
Toy Soldier Gangplank
Snowmerdinger
Mistletoe LeBlanc
Festive Maokai
Slay Belle Katarina
Dark Candy Fiddlesticks
Bad Santa Veigar
Snow Day Ziggs
Snow Bunny Nidalee
Workshop Nunu
Happy Elf Teemo
Earnest Elf Tristana
Old Saint Zilean
Re-Gifted Amumu
Santa Gragas
Reindeer Kog’Maw
Candy Cane Miss Fortune
Ragdoll Poppy
Nutcracko
Silent Night Sona
Snowstorm Sivir
Snow Day Singed
Winter Wonder Lulu

Snow Teemo: When you unlock all four of the other icons, you’ll earn the Snow Teemo icon. Please be aware it may take up to three days after unlocking the fourth icon for Snow Teemo to show up.

Even though I already knew this. This is pretty useful for the onces that don't

Great :3