I NEED HELP FINDING A CERTAIN ADVERTIESMENT!!!

So, I remember watching an animated league of legends ad while browsing youtube, and it started off by some random dude in a top-hat saying, "Hi! Welcome to league of legends!" and he takes some dude into the computer and they browse summoners rift. I've been searching everywhere on youtube and I was hoping somebody could help me find it, because I've searched LITERALLY 30 MINUTES on every site I could think of. Any help would be appreciated. Thank you!