So I have done this particular version of Donna a number of times. I just like this version of her a lot. So the idea is the Donna was the little sister of Wonder Woman but eventually finds out she is actually a goddess with vast cosmic power that was hidden on Paradise Island by the Amazons so that she would not be killed by the other gods. While on Paradise Island she is trained as a fighter and hones her powers in secret, until she met a young Robin, Flash, and Aqualad and became a Teen Titan!
As a celestial demi-goddess Donna can lift (press) close to 95 tons, her cosmic awareness gives her empathic powers and mild clairvoyance, and she can use her cosmic energies to rearrange matter or shoot powerful beams of force. She carries a golden lasso that she can mentally control to ensnare enemies and wears gauntlets she uses to deflect magic attacks (not so much for bullets since her skin is strong enough to take a mortar shell at close range).