*** CONTENT WARNING: LANGUAGE, VIOLENCE, SLIGHT GORE***
Matt didn't even look up before he was drawing his trident, and swimming at the source of the words while screaming; "Medeva!"
She was floating above where the falls should've been, at the top of the mountainside. The pressure should've killed her, but she and her vastly growing army of minions appeared to be just fine. As tens of Sirens started to turn into hundreds, Matt didn't stop..
Serenity started to build her power the moment she'd heard the voice. Levi snarled, then started to rapidly increase his size. Medeva saw it, and after she avoided Matt's initial attack, she shot a swirling mass of Darkness at him.
Selena tried to swim in front of him to take the hit, but he pushed her aside just in time. Black bands stretched, then coiled around Levi like a snake squeezing him whenever he tried to grow bigger. When he tried to shrink down, the Darkness got smaller with him.