Are there any penalties for using Lol logos and refs?

Hi I am a web developer and currently in the process of making a website that assists beginners in all aspects of the game from champion select and banning to farming to team fights. This will include video tutorials, build paths and guides. My question however is that am I allowed to put Lol's logos on my website? I will be using a lot of lol's contents so just want to make sure I won't end up being sued for copyright claims :(
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