UnnervingPrescence-Pig

Freedo

I think that Unnerving should also apply to the pigs Jigsaw boxes. It would definitely fit in nicely.

Elcopollo

Nothing applies to the Jigsaw boxes. Not a single perk, only Pig's addons. It used to work with boxes' skillcheck in the past, if I recall correctly, but since then it was nerfed. So it doesn't apply. Nor does Hex: Huntress' Lullaby. And I don't think it will, unless they decide to rework her completely, like they did with Freddy.