It's also things that don't show up on the score sheet that have made Hischier such a valuable commodity ever since becoming the highest-drafted Switzerland-born player ever when chosen No. 1 by New Jersey in the 2017 NHL Draft.
"His 200-foot game, his positioning," Fitzgerald said. "He's our go-to guy on defensive-zone face-offs, the penalty kill."
He's also one of two captains from Switzerland in the NHL (Roman Josi, Nashville Predators).
"He's a tremendous captain," Hughes said. "For how young he is, he's so mature and leads the way. And not just in the playoffs, but all 82 games."
Devils forward Dawson Mercer, 21, said Hischier was invaluable to him when he entered the League last season.
"It was great for me coming in with a young captain like him," Mercer said. "He was just so easy to talk to right from the get-go. I'm fortunate to be able to sit next to him in the locker room. I love talking with him. He's just there for you whenever you need him, but at the same time I think he's a really good lead-by-example type of guy."
He learned the importance of becoming a defensive forward at a young age during his development years in Switzerland.
"I was always [idolizing] Pavel Datsyuk, a good two-way player, and then I started following Sidney Crosby and Patrice Bergeron," Hischier said. "All these guys played any situation. I knew before I even got to the NHL that was the kind of player I wanted to be. I wanted to be responsible, a really good defensive center, but also a player who could help out in the offensive zone. That's been my player type."
Devils coach Lindy Ruff said Hischier doesn't get enough credit for his play away from the puck, his work on the penalty kill and how valuable he's become as a defensive forward matched against top lines each game.
Ruff also offered a side of his captain the public rarely sees.
"Yes, he gets mad," Ruff said. "I've seen him mad. It isn't a lot and not getting mad doesn't mean you don't care, but I think when a guy like Nico gets mad, the boys go, 'Holy [crap].'"
"I think you forget how young he is," Devils defenseman Dougie Hamilton said. "He really takes pride in the captaincy, leads by example and does everything the right way. We all have full respect for him and happy he's our captain."