Sword of Challenge
From Warhammer 40k - Lexicanum
The Swords of Challenge are relic weapons that are only used in a ritual, undergone by those Black Templars who wish to join the Chapter's Sword Bretheren order.[1]
Hallowed in the blood of failed Aspirants, the Swords are wielded on the second of the ritual's three trials. There the potential Sword Bretheren must successfully duel one of the order to first blood.[1]
