Flux Element: Blood!

A cool stream of energy envelopes his body. David felt as though something within him had broken and has been melted down.

Bringing his palm to his face, a crimson fluid like substance very similar to blood flowed and immediately coated his right palm, eventually wrapping around his fingers and then hardening, forming deep red sharp claws that glowed with intensity. 

David face broke out into a smile seeing this. He had finally awaken his element and able to manipulate them. 

Bringing out a pen from his pocket, his deep crimson claws snapped it into two like it was made of cheese. A voice suddenly interrupted him from his daze. 

"Mr Hills, seeing as you find what I'm teaching boring, it proves you have read about this topic. Would you mind teaching the class for me."

David raised his head only to find the entire class of 60 students staring at him along with the teacher.