Name: Crystal Skye
Codename: Aqua
Age: 19
Appearance: Can't post a pic right now. Imagine a blue-eyed, littler Kaley Cuoco ;)
Power: Can manipulate the element water. Can move it, change its temperature... You get the idea. 
Sub abilities: Can alter room temperatures and influence weather patterns, although this takes up a lot of energy and is harmful to Crystal. 
Growth: Crystal will eventually be able to take the form of water, becoming as fluid and shape-changing as the element. 
Weakness (es): Crystal has all of the earthly weaknesses. She also dislikes fire and hot temperatures. Incidentally, she runs at a way lower temperature than regular folk. 
Weapons: Weirdly, nothing except for her good self (or whatever she can get her hands on!)
Bio: Crystal had a regular upbringing in a seaside town in England. She loved swimming in the blue waters and was planning on one day competing in the Olympics as a swimmer. That was before all this, of course. Her parents were lost in the battle and now Crystal wants revenge. Big time. However, she's the 'keep your friends close but your enemies closer' type.
Other: Crystal is a bit of a dark horse and prefers to run solo. She will team,monkey if she thinks it is imperative to the cause.