Definitely. Power met her end in the Chainsaw Man manga. This event brought about changes in the dynamics among the characters and moved the story forward in an unexpected way.
Power dies in a climactic and intense moment in the manga. It's the result of a series of events and confrontations that lead to her ultimate sacrifice.
Chainsaws in graphic novels can have symbolic meanings too. It could symbolize the breakdown of order or civilization. A character using a chainsaw might be on a path of chaos, cutting through the normalcy of the story's world. This can be used to explore themes of anarchy, survival, or the darker side of human nature.