The Giantess has scaled up versions of her original self's abilities. Her telekinesis is strong enough to throw several buildings, as well as crushing materials strongly enough to create carbon nanotubes.
Her master ability works on capes and normal humans alike, and from an even greater distance.
Her danger sense has scaled up considerably. She is more resilient than just scaled-up human would be, being able to survive "the hug" from Titan Arachne.
↑The giantess had done something with the concrete she’d turned into a shield. Concrete broke, but something within was compressed, reformed on a molecular level. It was now nearly black, lace-fine, like geometric drawings that got more complex as one drew closer to the center, but it hadn’t broken with the impact. Even the parts further from the center. - Excerpt from Interlude 18.z II
↑The Giantess’s power was reaching out further. Finding people who hadn’t run away fast enough. Cape and civilian, pulled together into a force. Weapons were being arranged, cannons and rockets. - Excerpt from Interlude 18.z II
↑The giantess could see her before she acted. Could see every incoming blow before it could strike home. The thing that had been Hunter dove in close, trying to grab. She touched only air, and was touched in turn, a grazing contact from the giantess, who was now wreathed in a fractally arranged lace of fine molecules. Still backed up by an army of people who had been brought into her influence. The contact distorted the thing that had been Hunter, tugged at parts of her that controlled the threads and pillars.
She got her hands on the naked giantess, wrapped her in a hug, and squeezed. Her own threads tore through the carbon molecule chains, disarming her target, protecting them as she crushed meat and bone. - Excerpt from Interlude 18.z II