Boston Celtics' new addition Gerald Green brings a certain ‘scariness' to the TD Garden.

“I've been a big Gerald Green fan because I've been scared of him,” head coach Brad Stevens told reporters at the ABCD Hoops Dream fundraiser.

“And I think that that's a great way to figure out how good a player is: When you go into a game, he's on your scouting report, maybe in a highlighted way because he could go off for a lot of points in a short amount of time.”

Green is just another one off the J.R. Smith school of athletes that had insane hops coming into the NBA, but soon realized he needed to improve his arsenal in order to eke out a living in the league.

Like Smith, Green evolved into a three-point shooter, adding to his driving ability and high-flying antics.

The 6-foot-8 guard/forward combo has become a potent scorer off the bench with the ability to catch fire and torch teams with his long-range shooting.

“He can change the course of a game,” Stevens said. “Does he do it every night, historically? No. But he's had moments and times where he has done that. So I think he brings a spurt-ability to us that we clearly needed from a scoring standpoint.”

In an NBA world where bench scoring is hard to come by, Green's abilities will lend the Celtics a potential trump card that can set them off for playoff success if he remains healthy and finds a niche in the rotation.

Surely for Stevens, it's much better to have a scary player on his side than to go against him several times a year.