how would rainsford describe general zaroff

When Rainsford first meets Zaroff, he seems to be a cultured, well-informed man who has similar interests to Rainsford from the perspective of hunting. However, once Zaroff begins to hunt Rainsford, he becomes the enemy and is nothing but a ruthless killer.

This all depends on where in the story you are asking him. Initially, Rainsford finds Zaroff to be a most generous host. He is impressed by the opulence of Zaroff's mansion. Rainsford is also impressed at Zaroff's hunting prowess. Later, when Rainsford finds out Zaroff hunts people for sport, he thinks Rainsford is a bloodthirsty maniac.