Occam's Razor? Bad Olaf. The fact that he blamed "Leona's early game damage" is reason enough to be suspect, since she doesn't have any, short of walking up and repeatedly slapping you with her sword.
Got reamed up one side and down the other a couple of nights ago. Was me (as MF) and Singed top, Karthus mid, Blitzcrank and Lulu bot. Karthus disconned early on, came back but was critically underlevelled against Annie (and kept dying to her).
MF and Singed against Wukong and Kayle. I did a pretty good job of forcing them back with repeated use of E, while Singed just sort of ran around with purple flatulence. Eventually they realized he wasn't much threat and Wukong would leap attack me, stun me, and kill me. If I kept my distance, I couldn't do much and the lane got pushed against us. If I closed to range, Wukong mugged the hell out of me. Singed? Purple farts. Never saw him throw anybody.
Meanwhile, bottom lane gets pushed, Blitz is doing terrible, and the K/D ratio for the team is like 8/40. (And I've got half the kills).
Annie is so fed that she kills in a 1-2 punch.
Singed's response? "u suc k / u die 2 much" [sic].
My response? "Singed is inherently more survivable than most characters, and you've done jack-all the entire game. So zip it, bottle boy."
RAAAAEEGGGG
EDIT: oh, and Karthus was only mid because he begged me for it after I had already run and taken up position. I usually rock solo mid, especially against Annie. >_<