The Least expected character in a role?

I was visualizing a team that had the most awkward characters in each role and this is what I came up with:

Sivir as jungler (not because she'd be bad at it, but because "Why aren't you laning?") Veigar as ADC Soraka as Tank Skarner as Mage and Kayle as Support (instead of everything else)

hard to think of the actual worst-in-slot character/role combos because some of them actually work. I even tried Sivir jungle myself, against bots though. it's weird. And I don't have enough mastery points to make any of that work anyway.