Chelsea take on Rubin Kazan in the first leg of their Europa League quarter-final at Stamford Bridge tomorrow and Terry is confident Hazard will make the difference again.
Terry said: "He has been scoring goals as well as making them. When you come off the pitch and talk to the opposition, they all say, 'I don't fancy playing against him every week!'
"He has just got that fear factor about him where he is quick enough to beat someone - he can dribble inside or go outside. He poses a threat throughout the whole game.
"Eden has shown that form coming off the bench as well - he scored goals against Sparta Prague and Manchester United after coming on."