The field of battle wore the appearance of the (gloomy) abode of Death. Like the Pinaka of the enraged Rudra engaged in slaughtering animals.
रणाङ्गणं समभवन्मृत्योरावाससंनिभम्। पिनाकमिव रुद्रस्य क्रुद्धस्याभिघ्नतः पशून्॥