Echidna altered power clones (Vista)

"Three Vistas," I said. "And Noelle is probably north of our location, going after-"

"Skitter!" Tattletale shouted, interrupting me, "lose it!"

"What?"

"The armband! Toss it!"

I pulled at the straps. As I gathered bugs onto the armband to get a better sense of what I needed to do with the straps, I could tell that the entire thing was swelling, distorting. I could hear the screen crack.

I pulled it free and threw it, simultaneously climbing to my feet and scrambling away.

"Grue! Cover it!" Tattletale shouted. "Use your power on anything that one breaks down!"

Grue threw out a stream of darkness, then dissolved the darkness that wasn't covering the area where the armband had been. Without the ability to see, I had only my bugs' senses to go by, but I could track where he'd laid down the darkness by the way the air seemed thicker.

From Tattletale's words, I'd expected an explosion, but it simply twisted away into wisps of thick smoke.

"It's radioactive," Tattletale intoned. "Everything she's dissolving like that."

[...]

The first one I'd noticed was still on the rooftop, spreading out her efforts, thinning walls and twisting supports. Her progress was slow, but I was willing to bet that half of the city block would be collapsing onto us in a matter of minutes. If not sooner. If I had to guess, her power operated in a different manner than the original Vista's. It affected a wider area, it was slower, and she didn't seem to be suffering for our presence.

The bugs that I was sending her way were having a hard time approaching. They kept veering around so they flew clockwise around her instead of straight. I had only a few bugs attacking her, but the same effect that I'd seen with her face had hardened her skin and there weren't many places left to attack. Her mouth was little more than a lipless slit across the lower half of her face, firmly closed, and only the smallest bugs could get at her eyes. She barely flinched at the bites and stings my swarm was delivering.

Meagre as my efforts were, they still should have left her blind, filling her eye sockets with ants and no-see-ums, but her power was still steadily working on the buildings around us. Another peculiarity of her abilities? The ability to sense the layout of whatever structures she was affecting? Did that extend to sensing us?

The second one had arrived, creating footholds and handholds to ascend the section of road she'd raised into a vertical wall, twelve feet high. She was now perched on top, crouching. In the time that it had taken me to lose the armband, she had started to work on cutting off our best avenue of retreat. The road we'd traveled on to get here was raising behind us, bulging upward into a similar barrier. As far as I could tell, her powers were most in line with the regular Vista, and she seemed to be reacting most to the bites and stings. I wished that would make me feel more confident about these circumstances.

- Queen 18.6