Psychic Maelstrom

{8} Cabal points
Use this Cabbalistic Ritual when a unit from your
army is selected to manifest a Psychic power.
Until the end of the phase, that unit can attempt
to manifest one Witchfire Psychic power that
another PSYKER in your army has already
attempted to manifest during the phase, even
thought the same Psychic power cannot normally
be attempted more than one per Psychic phase,
even if that unit does not know that Psychic
power.