Because the violence of the natives is the principal idea, we're free to spend a whole paragraph establishing it. Rather than padding that paragraph, we invest it with details that support and define the notion. Write like that for your English teacher. Good grades are nice. But the anecdote demonstrates that actual good writing doesn't always work that way.
Some good paragraphs build energy toward a conclusion . . .
Joe Avatar Inventing a character to demonstrate an idea works better in game writing than in any other form. McZarn leads the McZarn Clan of natives in the Norno uplands. A wide, dense barrel of an alien, VolaBob amuses himself by forcing his underlings to eat their own skulls, and then helping himself to their wife-sisters. He works hard to provide food and safe ground for his clan, and the fence of Ragblatt bones along the Norno ridge stands as a testament to his efforts. He fears for his life, however . . .