Adrenaline, under the name Streak, was created a loooooong time ago for a roleplaying game on this very site. He’s a loud, obnoxious, speedster genius and held the top spot on my list of favourites until Dragonfly came around. He’s still number two though.
He’s recently gained bio-electric powers and the ability to amplify other peoples powers for a short time. So with new powers comes a new name and a new start.