A narcissist

An inflated ego that think highly of oneself, believe they are superior than others, lack of empathy, use lies and manipulate tactics to control. Narcissist tends to put someone down to make themselves feel better or get angry for no reason and make people apologize for them. Narcissists also like to fabricate facts to suit their needs or justify their horrible actions. In the beginning, they will love bomb you into thinking that they are charming, then start to manipulate you slowly, they could also make up a story about their childhood to gain sympathy, blaming parents that they are the cause of their horrible behaviors and that you are the only one who can help them. Narcissists cannot be helped because they always ended up deceiving themselves to be the right one.