Turns floor to dust

Ramirez flung the gathered energy in a last useless strike... that missed Madrigal entirety and splashed on the stone at his feet.
A section of stone the size of a big bathtub glowed green for a split second, then shattered into dust so fine that its individual grains would be almost invisible to the naked eye.
Just as my average preparation session for a fight does not involve considering twelve-foot kung fu leaps from knife-throwing masters, I guess Madrigal's practices didn't take into account floors that might suddenly become pools of nearly frictionless dust. He let out a shriek and plunged into it, flailing wildly. I could see the wheels spinning in his head, trying to work out what had happened and how the hell he would get out of it.


White Night Chapter 38, Page 399