League of Legends: What Do You Mean, the Ultimate Jack-of-All-Trades?

[S12 Rebirth Diary] “My name is Lu Ming, and I’ve been reborn with a research System.” “Drawing on all the amazing ideas I had in my previous life, I’ve invented Ice-Casket Crocodile, Draven jungle, AP Yasuo, and the bot-lane Chicken-and-Cow combo.” “But the pro league only lets me choose one position. Which one can I play without messing things up for my teammates, while still pulling off some goofy stuff?” “Just as I was agonizing over it, I suddenly got the call to play, even though I was only a substitute support for TES.” “What? Mark’s in the hospital with acute appendicitis? He’s okay, nothing serious... Wait, you want me to play in the playoffs?” “Huh? Tian’s feeling down again, so you want me to sub in as jungler?” “He broke his hand? How is that even possible?” “Bingbing, how come you’re the only one who’s fine? Okay, then let’s play the Machine-and-Cow combo in bot lane!” “...” [Bingbing’s Diary] “Mark’s sudden illness left management with no choice but to bring in a substitute support. Lu Ming used to be perfectly normal, but now he seems to have lost it.” “He actually wants me to play Alistar and Blitzcrank with him in bot lane... That’s it, we’re probably not making Worlds this time.” “Wait, things might be turning around. His Blitzcrank hooks are actually pretty accurate?” [Guo Hao’s Diary] “369 is sick, so we have to put in our temporary substitute, Lu Ming... Wait, he’s building Iceborn Gauntlet on top-lane Renekton? What a joke!” “Uh, no, hold on. Iceborn Gauntlet actually works on him!” “Who said Ice-Casket Crocodile was no good? This Ice-Casket Crocodile is amazing!” (P.S. This is a goofy comedy novel!)