How much do mob's saves go up per skull?

[TFerguson]

Has anyone figured out how much mob saves go up per reaper skull?

[LurkingVeteran]

Has anyone figured out how much mob saves go up per reaper skull?

I think wiki claimed 1.5, but might be outdated.

[Arkat]

I think wiki claimed 1.5

That's still what the Wiki claims.

https://ddowiki.com/page/Reaper_difficulty