King Ars Primer+Free Or Non Actions+Conscripting_Strike

Conscripting Strike (Su): By engaging his enemies in direct combat, the sovereign can overwhelm the minds of his foes with the force of his personality and force them into his collective. When the sovereign makes a weapon attack from within 30 feet of his target, he can choose to add his Charisma modifier (minimum 1) to his attack roll. If he does so, he strikes the target’s mind, dealing damage equal to his lifeblood resonance damage with no additional bonuses (instead of his weapon’s damage), and attempts to force them into his collective.