I love villainess stories and it's interesting that her power gets nerfed, I haven't read a lot of LNs where the MC's power goes down after being sent to their second life
One of the OG, yeah. No Reincarnation / Otome game, but it seems to be the progenitor of the modern Villainess sub-genre. Released in Web Novel form in 2012, two years earlier than Bakarina from what I could tell.