The document discusses several literary and historical schemers who devise plans to harm others for their own benefit, including: - "A" from Pretty Little Liars who blackmails and endangers the girls through various violent acts. - Satan who causes evil and temptation in the world by manipulating Adam and Eve into committing original sin. - Bellatrix Lestrange who devises lethal plots against Harry Potter and his allies on behalf of her master Voldemort. - Estella from Great Expectations who schemes to break Pip's heart by marrying his enemy. - Mother Gothel from Tangled who imprisons Rapunzel in a tower to steal her magic hair for eternal youth.