Thread:OBWforumsVSthreads/@comment-34890725-20181226205846/@comment-30654492-20181227082726

Slenderman takes this

>Slenderman can bypass Bill's Immortality but directly attacking his soul and destroying it

>Slenderman could trap Bill in an endless loop and then decide what happens to Bill inside. Of which would lead to Slendy essentially tormenting Bill

>Slenderman is a proficient in the use of Mindfuckery. He could quite literally mess Bill up mentally via Mindrape or mentally enslaving him

>Bill Cipher can't kill Slenderman due to the fact if even a single thing points to Slenderman's existence, then he'll come back. Combined with the fact he's an abstract idea and has Mid-Godly Regen, yeah it's an issue

All in all Slenderman takes this with at most Mid-Diff