I like this villain princess... Despite being murder-happy to her own forces and willing to kill her own lover, she seems to be the most level-headed of all of the villains so far. She killed off the annoying lady that never did anything other than complain. She punished her own soldiers that were messing with morale during an operation. She started a bit too prideful when trying to buy the sword from Evil Dragon, but she hasn't taunted anyone yet by bragging about how many people she sacrificed to power a puppet, or forced commoners to fight in a gambling ring, or used citizens as fertilizer, or been racist / dehumanizing. She's just been ruthless.
And she was even shown to go through the angel transformation process which is very painful, so she's at least somewhat earned her power. And it won't be a surprise for us if she gets into a fight and suddenly pulls out some magic powers, rather than most of the other villains who just suddenly turned out to be a 1km long bug that had been somehow hiding as a 2m tall man or were a puppet or a projection or ...