Trying to find creepy my little pony animation (Rarity voodoo doll, ~2013-2016)

Hi everyone — I’m trying to find a horror/fanmade animation of My Little Pony I saw around 2015–2017. What I remember:

• Rarity creates a voodoo doll. • She rips off her own horn and attaches it to the doll. • The scene was graphic / disturbing. • The style looked like a fan animation, about 2 minutes long. • I think Rainbow Dash also appeared. • I originally saw it on YouTube, but it may have been deleted.

If anyone remembers the title, the creator, a mirror, or anything similar, please let me know. I’ve been trying to find this video for years. Thanks!