As an action, you afflict a fiend that you have summoned and can see within 5 meters of you with bolts of vicious energy. These foul energies inflict terrible pain upon the fiend, torturing it to make it more pliant to your will. The targeted creature must succeed on a Will saving throw or it has disadvantage on ability checks and saving throws against you. In addition, creatures that demand payment for their services reduce the payment by 20%. However, beings tortured by this spell quickly come to resent you, making them more likely to try to pervert your orders to malicious ends or try to seek retribution after their release.
You can expend 1 additional mana or psi so any payment is reduced a further 20% (maximum 60% reduction, total).