Answer: She uses strong and precise action words.
Step-by-step explanation:
Excitement can be created in a text through the use of precise words that will serve to enable the reader to envision what is happening in their minds.
The author in this excerpt did just that by using the words: jamming, slashing, clashed, clattered, lunged and leaped. Reading these the reader will imagine the characters doing them which would make the text all the more exciting.