Main article: Sound Manipulation

Sean Cassidy (Banshee)Edit

He has the ability to shatter solid objects with an incredibly loud and destructive sonic scream.

Theresa Cassidy (Siryn/Morrigan)Edit

Siryn can cause her vocal cords to vibrate over a wide range of sonic frequencies and produce a volume of sound ranging up to at least 140 decibels. Siryn has thus the ability to shatter solid objects with a sonic scream.

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