Enter the Neuromancer
Lord of the rings and a song of fire and ice are pretty obvious inspirations for this too (m'rek being a tiered, vertical city is basically my version of minas tirith and king's landing, respectively).
Patterson: Armistice
Look, it's fire and ice. we're never gonna all be compatible. we've changed, we've developed, and as we've defined ourselves as distinct puzzle pieces, we are not all gonna fit. we're not liquids anymore. we're not young, jelly blobs."
Sweet & Sour
Jeffy blushed as he felt funny all of a sudden, the rabbit shifting back a bit as he focused on his own drawing, "well i-i'm a magic bunny too, i shoot fire, and ice, and umm, lightning!" "that's really cool!"
Project Tooth and Claw Pt. 4
Half her body was nothing but screaming nerves, pleasure and pain, fire and ice, every sensation firing constantly as she stared at the creature lurching up hungrily through her, clutching all the tighter at that tail as she licked her lips.
Track and Field: Part 10 - Red
fire and ice; blazing heat and tundra snow; the energy from us connected was unlike anything i'd ever felt before. although it lasted only a few seconds it left my head reeling.
Chapter 39: A Terrible Power
But she quickly banished the thought: enya and zane got along as well as fire and ice. "that," said enya, pulling yuri close, "is the last time you'll ever fuck yuri. i hope you savored every moment."
The Tale of Tecwyn, Ch1 - An icy journey
The forces of fire and ice let out a sharp hiss upon collision as they merged to become steam, but this was not enough to stop all the snow.
Blended
It's like ... excuse the term, but like 'fire and ice' ... " "fire evaporates ice." "and ice," the skunk countered, "puts fire out." a small shrug. "they're two mutually opposing forces ... drawn together, beneath it all, by, uh ... " a flush.
Chapter 10- Blades of Will
So, putting aside his confusion, he did as asked, and pressed the attack, weaving in phasing where needed, his blades practically humming from the constrained force of fire and ice in them. for canith's part, it was like a dance.
A Superior Defense: Chapter 4
As his balls churned with seed, he snapped his fingers, and two wolves - twin brothers, a fire and ice pair - pulled away from the wall. they went to their hands and knees, crawling over to him, before stopping at his sides.
Chapter Sixteen: Bonding
Tsukiko whimpered breathlessly, but usuyami was too far gone to hear her, engulfed in a roaring wave of climax that was just crashing over her that made her vision flicker and torrents of fire and ice cascade up and down her back.
Raven Wolf - Book 04 - Chapter 04
The first two sources ice and fire, represented destruction and the end, but they also represented the power of family, as fire and ice were siblings to one another. it's same with all the other sources.