Prism of Echoes

Once per battle, at the start of any phase, the bearer can use this Crusade Relic. If it does, until the end of the phase, the bearer has the following ability:

Prism of Echoes (Aura): While a friendly Rubricae unit is within 6" of the bearer, add 1 to the Attacks characteristic of weapons equipped by non-Psyker models in that unit.