Only took 2+ years for me to update her ref

The final boss from the first of an iconic series of RPGs in-universe, bought to life from a cursed copy. Due to the reports of a cursed copy, they had to briefly get recalled before releasing patched, curse free versions
She was once an ordinary dragon servant named Esmerelda serving an evil wizard named Mesmer who planned to plunge the world into an eternal slumber. Once the player finally defeats him, she decides to rush in and absorb his power by eating him, granting her a new form and powers to carry out his agenda and continue the battle! The fight was known for being... Very poorly balanced, being able to put players to sleep then dish out incredibly high damage attacks before they could act.
She plans to try and put the real world into eternal slumber as well, but no major progress so far since she's being watched closely by a certain group.
She's very flirty, very villainous to the point of being cliché, and loves having heroes challenge her. She'll frequently carry out kidnappings for a damsel in distress just for someone to give her a good fight that she'll likely win.

Oh yeah, she's also Fwims summoner