A semicolon continues the story. For example; I could have just stopped and said one setence but I continued on by putting a semicolon since there was more to tell.
Once he cut it off, he could use it as a weapon because it's powers still worked, so if someone attacked him he could just whip it out and use it as a weapon to turn his enemies to stone, which he does on few occasions and wins the fights that would either be impossible or much harder for him.
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Answer:
They create a troubled, pessimistic tone.
Explanation: