Mahabharata 7.154.50

तस्मादेनं राक्षसं घोररूपं; जहि शक्त्या दत्तया वासवेनमा कौरवाः सर्व एवेन्द्रकल्पा; रात्रीमुखे कर्ण नेशुः सयोधाः

tasmādenaṃ rākṣasaṃ ghorarūpaṃ; jahi śaktyā dattayā vāsavenamā kauravāḥ sarva evendrakalpā; rātrīmukhe karṇa neśuḥ sayodhāḥ

Our plain-language meaning of this verse is waiting for scholar review.