Solita

Solita (龙莹 pronounced as Long Ying) is a villainess from the 2nd Universe. She was born from the White Dragon clan but she soon grew up to create Black Scorpion clan.

Background
After witnessing her father's death by the hands of Devin's master: Stegosaurus, and the annihilation of her entire faction (with her being the only survivor), she vowed revenge against the Blue Dragon clan. She eventually succeeds in killing all but Devin.

Trivia

 * Due to her father winning the contest, thus also guaranteeing the White Dragon Clan's rulership, the Energy Locker that would eventually fall into Devin's possession is technically hers by inheritance. The fact that this was never mentioned becomes a plot point in the 2nd half of the series.