Final answer:
The commonly overused word that can be replaced with a more effective choice is 'powerful' in the sentence.
Step-by-step explanation:
The commonly overused word that can be replaced with a more effective choice in the given sentence is 'powerful'. Since the sentence is referring to an opponent, using a more specific and descriptive word would enhance the message. Instead of just saying 'powerful', you can use words like 'formidable', 'dominant', or 'mighty' to convey a stronger meaning.
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