Riot Games Inc. declares in the Terms of Use"Riot Games does not authorize You to make any use of any Riot Games trademarks, service marks, trade names, logos, domain names, taglines, and/or trade dress (collectively, the "Riot Games Marks") under any circumstances without a written license agreement (...) The Site and the Game are protected by U.S. and international copyright laws. Except for your use as authorized above, you may not modify, reproduce or distribute the content, design or layout of the Site, or the Game, or individual sections of the content, design or layout of the Site without Riot Games’ express prior written permission."
We believe this falls under U.S. fair use law because:
It does not limit the ability of the owner to profit from the image in any way.
It is used solely for the purpose of providing illustration and a guide to Riot Games' products.
of 
