Gimme That Pacifier! (2021)

Blurb:
Betrayed and executed by her pupil, magician Hela Sylopia is reborn as the neglected infant granddaughter of a rivaling nation’s duke. To make matters worse, her family doesn’t remember her name, and the maids don’t care what happens to her! But when she discovers that having her pacifier in her mouth can expand her mind, Hela uses that to her advantage to survive, get rid of those who stand in her way, and start plotting her revenge. Will Hela succeed, or will she wish she’d never been reborn?

Source: www.anisearch.com/manga/72654