Yiddish magic

Yiddish magic is one type of magic in Daniel Kravitz, Chosen One, a segment of It's All Been Done Radio Hour.
Rufus Reginald Rochester doesn't know a lot about it, calling it very powerful and complicated ("Cult of B.O.B.").
The U.L.P. gets a tip about some Yiddish magic, which sends them on a mission to Pennsylvania. They find a book that a teenage boy used to summon a golem. But even sorcerer Alfredo finds the spells unpredictable and difficult to control, which results in the merging of the golem with Leavitt Halpern ("Witch Hunt," "Deceit of Clay"). 
Rufus did bring the book that was used to summon the golem back to the U.L.P. base.