Mind Control

Select an enemy model within 12" of the psyker
and roll 3D6. If the score is less than that model's
Leadership characteristic, nothing happens, but if
it equals or exceeds it, that model can either shoot
as if it were your Shooting phase, or make a single
close combat attack as if it were the Fight phase.
In either case, treat that model as if it were a
separate unit that is part of your army whilst
shooting or making that close combat attack.