Mona

Stanley became alert the moment Mona clapped. He instantly understood that clapping was her way to activating her powers, and waited to see what it was.

Suddenly, Stanley saw a future where something burst out of the ground and covered him entirely in it. Having seen the future, he moved to the side and watched what happened next.

Something white appeared out of the ground, but without destroying the ground, and crushed on itself. 

"Ice?" he couldn't help but ask when he saw that. However, he felt no cold from that, so he was not sure if that was ice. It had to be something else. 

His second thought was glass, and while that was a lot more possible, he wondered why glass didn't just shatter.

He looked around at the girl to ask her what it was, but couldn't speak when he saw her a shocked look.

"Uh… is everything alright?" he asked her.