Once per battle round, one model from your army with this ability can use it when a friendly TYRANIDS unit within 12" of that model is targeted with a Stratagem. If it does, reduce the CP cost of that usage of that Stratagem by 1CP.

While a friendly TYRANIDS unit is within 6" of this model, ranged weapons equipped by models in that unit have the [ASSAULT] and [LETHAL HITS] abilities.