straw man vs deceiver

straw man and deceiver both are nouns.

Word	Noun	Adjective	Verb	Adverb
straw man	Yes	No	No	No
deceiver	Yes	No	No	No

As nouns, deceiver is a hypernym of straw man; that is, deceiver is a word with a broader meaning than straw man:

Other hypernyms of straw man include beguiler, cheat, cheater, slicker, trickster.

straw man (noun)	deceiver (noun)
an effigy in the shape of a man to frighten birds away from seeds	someone who leads you to believe something that is not true
a weak or sham argument set up to be easily refuted
a person used as a cover for some questionable activity