Complex sentence: The character is the niece of D.L. Hawkins and first cousin of Micah Sanders, who has the power of muscle mimicry, meaning she can replicate any physically possible motion she witnesses.
Split into simpler sentences: The character is the niece of D.L. Hawkins and first cousin of Micah Sanders. She has the power of muscle mimicry, meaning she can replicate any physically possible motion she witnesses.