Cup of Wulfen
From Lexicanum
The Cup of Wulfen is a sacred relic of the Space Wolves. The legend tells how Leman Russ gave the cup to his original followers, the first Space Wolves, telling them to drink form the cup. The first man, Wulfen, who was secretly jealous of Russ, drank, and became the first Wulfen, an angry amalgamation of the wolf spirit and the darkness of the creature. He leapt to attack Wulfen, who throttled him with one hand. Russ then declared that all those who were unworthy would become a Wulfen. He would allow any of those who had come to turn back, but none did. Those who drank and survived became Space Wolves. All aspirants who have passed through the Gate of Morkai must drink the cup. The emergence of the wolf does not happen immediately. The cup is kept in the Fang on Fenris to this day, in the care of the Wolf Priest.1
