Worgen and the Nightmare 
Are worgen resistant to nightmare corruption?
In short, the worgen resistance to magic is not perfect. We are told that the Lycanthoth Vandals were Gilneans corrupted by the Twilightâs Hammer, and while that could be stated by an unreliable narrator or could simply mean manipulated, we also have the Blackhowl Pack; humans and worgen corrupted by black dragon blood. However, when it comes to worgen and Nightmare specifically, the question gets a little tricky.
Logically, one might assume our connection to Goldrinn may make worgen vulnerable, since Wild Gods can be corrupted by Nightmare, such as Ursoc and Cenarius in Legion. But we also have four âFeral Worgenâ in Valâsharah that, while they are in the mindless state, they are not corrupted by the nightmare. These worgen specifically arrived in Valâsharah by traveling through the dream from where they had been banished by Malfurion 9,300 years ago, and did so without being tainted by the Nightmare. Where regular kaldorei druids are vulnerable to the nightmare when dreamwalking, these worgen slept in the dream for over nine thousand years with no side effects. We also have various hints that the Dream was indeed corrupted while the worgen were inside, including the transcript of The Book of Ur, claiming that âworgen come from a land of nightmare, in eternal war with their enemyâ, which was confirmed to be Satyr in Curse of the Worgen.
However, it is also worth noting that the Nightmare has a habit of sending people crazy at the very least, and those four worgen - while they were physically fine - were indeed mindless. We also have multiple packs of feral worgen able to expertly use shadow-magic, straight after being summoned from the dream, most notably the Terrowulf and Nightbane. It is worth asking why these former druids took to exploring shadowmagic, not druidism, upon their release, and why they can do so so efficiently. The answer as to why might be the same reason the Feral Worgen were not corrupted, and why they were able to wage war with the Satyr inside the nightmare; our racial resistance to shadow/nature magic is more than just a mechanic. 