Mahabharata 6.103.15
यथा घोरो महानागस्तक्षको वै विषोल्बणःतथा भीष्मो रणे कृष्ण तीक्ष्णशस्त्रः प्रतापवान्
yathā ghoro mahānāgastakṣako vai viṣolbaṇaḥtathā bhīṣmo raṇe kṛṣṇa tīkṣṇaśastraḥ pratāpavān
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book