My favorite scene in The Lord of the Rings was when the 2-4 bands of travelers who were each carrying copies of The One Ring met on a battlefield and started summoning orcs and horrors to fight beside them to try and kill the other group(s). Then, when all but one group was destroyed, everything blinked out of existence until 2-4 new bands of travelers suddenly appeared out of the ether and began engaging in the same behavior.
