Rainbow in the dark: Well this is a reference to the Dio song of the same name.
Trial by Fire: Is a reference to the Testament song off The New Order
King Bendix: The end boss in a Cabal for One comes from Kim Bendix Peterson otherwise known as King Diamond.
Edward the Flesh golem: from Fleshmakers Lab is a reference to Eddie of Iron Maiden.
Elyd's Edge: has a Rush quote in the description of the item.
In the flesh: Is a reference to a Pink Floyd Song.
Running with the Devils: Comes from a Van Halen song
Schenker: The rare scorpion king in Ataraxia's is named after the guitarist of the Scorpions.
Fear Factory: This is the name of an industrial metal band, I saw them in Sac in July (HELL).