A person who tries to deceive people by claiming to be able to do wonderful things
A). Trickster
B). Imposter
C). Magician
D). Mountebank
Trickster
One word substitute is Trickster.
Trickster: a person who cheats or deceives people.
Imposter: a person who pretends to be someone else in order to deceive others, especially for fraudulent gain.
Magician: a person with magical powers.
Mountebank: a person who deceives others, especially in order to trick them out of their money