The dwarfs unleashing a tidal wave of lava upon the evil elephant invaders, The Great Elephant War, 9th Slate, 1098, colourised.

Notes:

It's a shame that the wave isn't red, because then this would have been perfect. Also, DALL-E doesn't like it when you use Murdered, which is why Boat Murdered wasn't used in the search.

Context for the image.