Take one character from a franchise and put that character in the totally opposite franchise

Freddy Krueger from Nightmare on Elm rua in My Little pónei, pônei

Hm...I need to think of something Mephisto wouldn't fit into because his personality is honestly pretty flexible...
...let's see.....
....no sex, nobody to withhold intelligent conversations, too peaceful....ah, I've got it.

Mephisto in Teletubbies.
Think about it.