Treason of Tzeentch

The psyker reaches his thoughts into the minds of his victims, subverting their will and turning them
upon their own allies.
{8}Select an enemy CHARACTER that is within
18" of the psyker and visible to him and roll 2D6.
If the result is greater than the character's
Leadership characteristic, until the end of the following Fight phase treat that character as if it
were a friendly model from your army in your Shooting, Charge and Fight phases.