Malph is easy-mode for me
For two reasons:
1: He's super tanky and deals super damage. He has a high burst with his Q-W-A-E-A-R-A-A, and a whole shit-ton of sustained damage with his W auto attacks. Especially with Titanic Hydra.
2: It'll always inspire a Yasuo to be in your game, either on your team for the nice combo, or their team, in the hopes your team doesn't get to use it. And if the latter happens, you basically win, because you're Malphite, playing against Yasuo.
I pretty much have a 100% winrate on him so far, albeit I haven't actually played him in a long while. But I'm absolutely stomping semi-low-gold right now.
Edit: The second I make this, I instantly get a match with four AFK's. Just my timing.