Strong adjectives/verbs etc = emphasis or immersion
Hyperbole = convey the writer's emotion
Metaphor = paints a visual image and/or immersion
Simile = same as above
Onomatopoeia = immersion
Semantic/lexical fields = immersion
Emotive language = invoke emotion in the reader
Rhetoric (Direct Address, Rule of 3, R. Questions) = emphasis/invokes emotion/strengthens argument
Alliteration = adds to tone of piece, immersing reader
Hope that helps! Feel free to add anything if I've missed it out! Hope all goes well on Monday!