When he heard the Utah Mammoth were looking to move up in last week’s draft, Ethan Belchetz said he got “some tingles in your chest and butterflies in your stomach.”

And by the time he’d heard the “Win” in “Windsor Spitfires,” the 18-year-old was ready to sprint toward the stage and put on his new jersey.

In truth, Mammoth General Manager Bill Armstrong was — and maybe still is — in a hurry, too.

The urgency on draft night started when the young forward started to fall. A lot of draft experts thought he would go to the New Jersey Devils with the No. 12 overall pick.

“Truth be told, we didn’t think he was going to be in our range,” Armstrong said.

When Belchetz’s name wasn’t called, Utah’s general manager acted quickly, trading two picks to move up two spots to grab him.

“We were going to make sure we do everything in our power,” Armstrong said.

Now that Belchetz is in Utah this week for the Mammoth’s development camp, Armstrong is again thinking about power and speed.

Belchetz’s size makes him an intriguing prospect.

“I just wanted to get a player that was kind of my size, so when we did the interview process, I looked thin,” the hulking Armstrong joked.

Belchetz is listed at 6-foot-5 and 229 pounds.

“I think he’s a true power forward,” Armstrong said, “someone that can do everything in the game from playing physical to taking care of business if someone needs to be protected, one of his teammates.”

While a lot of prospects need time to bulk up and prepare for an NHL spot, Belchetz is more concerned about his speed.

“I’ve already talked to the nutritionists here about how to get faster, leaner, stronger,” he said. “If I can fly around the ice that little bit quicker, I’m going to be that much more effective.”

But Armstrong likes what Belchetz, who had 34 goals and 25 assists last season, can do on the ice already.

“He’s really good around the net,” Armstrong said. “We’ve got some speed and skill. It’s nice to have that true power forward that can take that next step to help us win a championship at some point.”

And there is an outside chance that that point could come sooner rather than later.

Armstrong said he wants someone from this week’s development camp to “go in the dressing room and steal a jersey” — to earn a spot on the Mammoth’s roster.

“It’s not out of reach that someone in this development camp can come in and steal a job,” the general manager said, sitting next to Belchetz. “There’s a lot of talent and he’s one of the pieces that has the talent to come in and get a job.”

Belchetz said he wants to show off his “competitive side” this week.

“I’m going to put everything out there,” he said. “I’m a physical, skilled power forward and I want to show that I’m a competitive player that wants to win and doesn’t let anyone take the puck from me.”

And he wants to be one of those guys stealing a jersey before it’s all said and done.

“For me, I already have that expectation for myself,” Belchetz said. “I’m a big guy; I have the size already. I’m going to do everything to take that spot and earn a job for myself.

“It’s cool to hear [Armstrong] say that, but internally I already have that mentality.”