Complex sentence: The Null Void Vulpimancers are a group of Vulpimancers (Wildmutt's species) from the Null Void that first appeared in "Truth" where two of them were unleashed on a meat packing plant as part of Phil's plumber scam business.
Split into simpler sentences: The Null Void Vulpimancers are a group of Vulpimancers (Wildmutt's species) from the Null Void. They first appeared in "Truth" where two of them were unleashed on a meat packing plant as part of Phil's plumber scam business.