Nushzad Breaks the Royal Left Wing

From D13.19, The Death of Nushzad. It illustrates D13.19.49–55:

D13.19.49
He answered old Pirooz in words of flame,Then veiled the air with shafts that thickly came.
D13.19.50
The warriors advanced; the karnays cried,And battle-roars went up on every side.
D13.19.51
Nushzad spurred on, a blaze amid the fight,Like Azargashasp’s fire in all its might.
D13.19.52
He broke the left wing of the royal force,And none could stand against his headlong course.
D13.19.53
He slew full many lions of the field,And forced the stoutest warriors there to yield.
D13.19.54
Then Ram Barzin, grown wrathful, gave commandTo rain down arrows from Iran’s armed band.
D13.19.55
They filled the air as springtime hailstones fall,And battle’s clamor thundered over all.