I recommend "Universe Zerg: Evolution and War" to you. The protagonist of this book is also a Zerg Overlord. He can evolve to the point of eating metal, similar to the Zergs in Starship Troopers. The storyline was very exciting, and the most attractive part was the domineering scene of the Zerg army devouring everything. You definitely didn't want to miss it. I hope you like this fairy's recommendation. Muah ~😗