I don’t know what kind of rhyme you are going for but it sounds good!!
What is the story so I can answer?
Grievers. They are these huge terrifying gooey things that inject you with poison that will make you go insane.
It is called the diction.
Angst, in writing, is like a dark story. One that has a sad, dark, etc. plot to it. On the other hand, tone is how a writer feel towards a topic.