When I first heard about malignant Jewish beings I heard the term Mazzik. Are these the same thing as Sheydim or different creatures?

also I love your blog so much its so cool

thank you! so of course it depends on who you ask (like everything in Judaism, haha) but mazzikin/mazzikim are generally considered to be nastier kinds of sheydim. a sheyd MIGHT be dangerous but a mazzik DEFINITELY is, especially to people who need to do some kind of teshuvah. there are stories of mazzikin chasing the souls of wicked people from body to body (so the souls become dybbukim who don’t exactly want to possess people, they’re just hiding from these demons, and exorcising them involves dealing with the demon too).

the Jewish horror film The Vigil (2019) features a mazzik as the main antagonist!

and yes, the character from The Sandman & Lucifer named Mazikeen literally just has the Aramaic plural form of demon for a name.