Numerologist Cabal

At the start of the controlling player's turn, a Psychic check may be made for a unit that contains one or more models with this Psychic Power, using the highest Leadership Characteristic among those models. If the Check is successful, a model with this power gains a geo-locator beacon until the end of the turn. In addition, up to two friendly units composed entirely of models with the Legiones Astartes (Thousand Sons) special rule with one or more models within 6" of any models using Psy-synchronicity gain a bonus of +1 to their BS during the Active player's Shooting phase, so long as models with this Psychic Power do not make a Shooting Attack in the Shooting phase. If the Check is failed then the unit suffers Perils of the Warp.