In days of yore, when legends grew,
Sir Gawain vanquished the beast they knew,
Through flames and fear, his courage shone,
As Razorwing met its doom, overthrown.
The knight's name is Sir Gawain and the dragon is known as Razorwing.
You are the Queen's royal bard, tasked with composing a ballad about a brave knight's heroic victory over an evil dragon. Write the first four lines of the ballad.