Denki Kaminari

ye. everytime I use my quirk it layers onto my hands and immediately hardens and tightens around my hand replacing my skin. one layer ain't noticeable or harmful but each time I use my quirk it layers up and darkens and makes it look like my hand is turning a metallic black. it makes my hands more fragile and breakable each time and it will become difficult for me to move my hands so when I do move my hands when it gets to that point my hands will start to crack and break....