Cassie Boyle aka Sand Shark.
Subject AT6152 villain S class. Cassie Boyle, May 18, 2038 died during the field tests of Mermaid Mk2 - the new exoskeleton of Atlas Corporation. Having received incorrect coordinates due to an error of the control center, she fell into anomaly zone. When confronted with the sand anomaly, Kessi lost her arm and allegedly sank. The body lay at the bottom in the sands for nine days. On the ninth day, the subject was reborn, having received supernatural abilities. The body of the AT6152 now represents a symbiosis of anomalous sands and human flesh. For ability to control sand and how transformation occurred, the subject received code name - sand shark.