All League Of Legends Items and champions assets
RIOT GAMES ASSETS Free to use
All_Skins_Assets/All_Skins_Loading_Assets Assets dimensions: 308x560px Assets extensions: PNG
All_Skins_Assets/All_Skins_SplashArts_Assets Assets dimensions: 1215x717px Assets extensions: PNG
All_Skins_Assets/All_Skins_Square_Assets Assets dimensions: 380x380px Assets extensions: PNG
Champions_Assets Champions assets format: 120x120 Assets extensions: PNG
Items_Assets Items assets format: 64x64 assets extensions: PNG
Loading_Screen_Borders_Rank_Assets Rank Borders assets format: 462x840px assets extensions: PNG
Missions_Assets Items assets format: Mostly 256x25px assets extensions: PNG
Runes_Assets Items assets format: 64x64 assets extensions: PNG
Summoners_Spells_Assets Items assets format: 64x64 assets extensions: PNG
Ranks_Icons_Assets Ranks Icons assets format: 512x512px assets extensions: PNG
Pings_Assets Pings assets format: 128x128px assets extensions: PNG
You can get .rar files Compressed_Archive
Assets retrieved with League Of Legends API during 12.16 Patch Compressed Archives updated during 11.6 Patch