So, I have been wondering if I can use official LoL artworks on posters promoting LoL Tournament. It would be a local event of course but we have already organised city council as a sponsor and things are expanding pretty fast. I just don't wanna break copyrights. What do you guys think? 
Riot allows the use of all League of Legends content for fan creations. If the artwork was created by a third party, such as fan-art, the license is owned by the individual creator and you would need to obtain permission.
The only Trademark/IP Riot does not allow community use of if the Riot Games Logo. Though, if you are selling created products (such as putting their art onto T-shirts for sale) you enter a whole different area ad they start to require more interaction with you and explicit permission.
If you want help with your tournaments, feel free to get a hold of me.
Darkorpse, Owner/Ceo Not So Stock Gaming www.notsostock.ca
