Transmigrated to a Calamity-Ravaged World and Awakened as a League of Legends Summoner

A soccer boy transmigrates to Blue Star. He thought he was a complete washout, but then he awakened the Universe-Class Hero Summoning System. Whether you can connect to the S-rank plane, the Sacred Flame Realm, or the SS-rank plane, Shu Mountain, even if you’re the most talented person alive, an Eternal-Rank Gambler of Fate, I’ve got a cannon on my shoulder and a giant demon swinging a club at my side. We’ll wipe you all out! A special dungeon with a 100% death rate? I’ll clear it without a scratch. Calamity coming to devour a city? Then I’ll be humanity’s miracle. Remember, the plane I can connect to is an EX-rank plane: the continent of Valoran. It has the Star-Forger Dragon King, who can create planets in an instant, and the Void, which devours universes. Even max-level professionals can’t beat my Darkin greatsword-wielding demon. Technology? Sorry, I’ve got Heimerdinger and Jayce. Equipment? Sorry, ever heard of Ornn’s masterwork items? Hahaha! You want to compare villains with me? Is there any villain scarier than this man of iron? I’ve died twice and been reborn three times. I, Liu Yi, will always be your nightmare!