Which line best helps the reader understand Grendel’s character?

In the beginning there were various groups of them: ragged little bands that roamed the forest on foot or horseback . . .
Ice clung to their eyebrows and beards and eyelashes, and I’d hear them whining and groaning as they walked.
In time I began to be more amused than revolted by what they threatened. It didn’t matter to me what they did to each other.
Spears flying, swords whonking, arrows raining from the windows and doors of the meadhall and the edge of the woods.