Crusade Relic interaction question I have a question regarding how two Crusade Relics interact and whether one cancels out the other. 

We have the Blackstone Shard Amulet and essentially its ability means the bearer can never be targeted or affected by any psychic powers, nor can the bearer attempt to manifest any powers or perform any phsychic actions. 

Then we have the Sphere of Darkness from the Beyond the Veil expansion, which allows the bearer to deny the witch in the same manner as a psyker. 

I was wondering, if a unit has both these relics, does the Amulet cancel the ability of the Sphere? 

Would be interested to hear people's thoughts on this?