Shadow Stalker mass shifting

Made lightweight by her power, Shadow Stalker leaped to the nearest wall, then vaulted herself off, careening directly toward three of the retreating men.  As she landed atop the one in the front, she dropped out of her shadow form, returning to her normal weight.  Planting her feet on his shoulder blades, she combined the force of her weight and her momentum with a downward kick of both feet, driving him into the water, hard.  She went shadowy a half second later, becoming almost invisible in the gloom of the empty lot, effortlessly reorienting her now lightweight body to land on her feet.

Sentinel 9.2