what literary device best fits the sentence?

"you could start a fire from this gaslight."
irony, metaphor, paradox, personification, allegory, allusion, alliteration, symbolism, hyperbole, foreshadowing, onomatopoeia, theme, style, rhyme, scheme, meter, caesura, couplet, enjambment, foot, lambic pentameter, sonnet, stanza, anaphora, blank verse, genre, juxtaposition.

3 answers

metaphor
why
The sentence "you could start a fire from this gaslight" uses a metaphor because it is comparing the gaslight to something that can create a fire, even though it is actually just a source of light. It is creating a vivid image in the reader's mind by making a comparison between two unlike things.