This one is a real curio to Fulci fans, who were used to his gore laden horror masterpieces such as Zombi, House by the Cemetery and The Beyond.
He jumped in on the Sword and Sorcery bandwagon here, which was booming at the time thanks to the Conan movies, and Conquest is definitely of that mould - though ultimately it's mediocre.
Basically a tale of two men who form a friendship and team up to defeat an evil priestess who controls a cult dedicated to ruling over the rising of the sun and sacrificing people to the priestess so she can eat their brains (presumably to keep her looks - hard to tell as she keeps her face hidden beneath a golden mask).
There are some typically cheesy 80's effects here - the magic arrows for one - though it's a cool idea for a bow if you're into that sort of thing. There are dog-men, a couple of gore effects here and there - one particularly nasty one is early in the film where a girl gets wishboned in fairly visceral fashion... The music is cheesily 80's as well - and if I remember correctly, was done by Italian musical legend Claudio Simonetti of Goblin - not one of his finest scores, it must be said.
The two leads are the classic chalk and cheese - one a young hero who looks like he was lost from Clash of the Titans, the other your older barbarian type, who has no love for men, but has a special affinity with animals and believes in his own moral code - if you kill an animal for a reason other than food, you're dead, plain and simple.
Typical of Fulci, the lines between good and evil aren't always so straight - and the heroes aren't entirely likable, but it's nowhere near as abstract as his horror movies were.
Most fantasy or Fulci fans won't be a fan of this, but there are worse examples of fantasy films out there, believe you me.