That is a dualist religion , that has a satan as powerful as their god .My pastor came from a Zoroastrian family of "priests" he was the first Christian in the family .
I agree, but many Zoroastrians would disagree that it's dualist.
I have a couple of Zoroastrian friends i've conversed with on the topic and they generally think that it's not dualist by any means. However, what's interesting is that Evil has "created" certain animals like the Snake.