To Aaron Judge, Luis Severino looks like he hasn’t missed a beat.

“Our ace is back,” the right fielder said after Severino threw five scoreless innings in his second start back after missing most of the season with arm injuries.

Severino certainly looked the part in an 8-3 win over Toronto, as the Yankees closed out their home regular-season schedule with another series victory.

The right-hander allowed just three singles and hit a batter while striking out nine.

“We’re excited about it,’’ Judge said. “Just at the right time. And he’s coming back healthy. That’s the most important thing.”

The real test for the right-hander will come in the playoffs, but Severino’s first two outings since he was sidelined with right rotator cuff inflammation followed by a lat strain have given the Yankees more hope that he’s pretty much himself, likely with one more start to make before the postseason.

Severino overmatched Toronto and consistently reached the high-90s with his fastball in his 80-pitch outing. The Blue Jays didn’t get a runner into scoring position with Severino on the mound.

“I’ve been out there twice,’’ said Severino, who accidently pitched with a compression sleeve in the second inning. “I feel fresh. I feel good to go.”

The Yankees’ lineup made his work less stressful.

Judge opened the scoring against opener Wilmer Font with his 26th homer of the season in the bottom of the first. Brett Gardner added a three-run shot into the second deck in right later in the inning to make it 4-0.

DJ LeMahieu’s two-run opposite field shot to right in the second gave the Yankees a 6-0 lead.

Meanwhile, Severino cruised.

Of his 19 pitches in the first, 15 were for strikes. And when he got ex-Yankee Billy McKinney to fly to right to end the fifth, Severino pounded his glove and looked to the sky.

“He was really good,’’ Aaron Boone said. “I thought he got sharper as he went on, actually.”

Severino admitted he tired in the fifth, but looked strong throughout the start with one more outing to go before the ALDS begins on Oct. 4

And with Sunday’s victory, the Yankees clinched at least the second-seed in the AL, meaning they’ll have home-field advantage in the first round.

“We’re set up in a lot of ways with our power for this ballpark,’’ Boone said of the importance of playing in The Bronx. “It’s a place where you’re pretty much playing in front of a packed, energized crowd every night, which I think certainly fuels our guys and energizes our guys.”

Because he showed no trouble through 80 pitches, there’s no reason to think he won’t be fully built up in time for the playoffs.

Of course, Severino has been brilliant for long stretches earlier in his career, only to falter in the playoffs — including last year’s nightmare against the Red Sox in Game 3 of the ALDS, when he allowed six runs in three innings and there was fear he was tipping his pitches.

Boone said he was confident those issues had been dealt with and he thinks if Severino continues to throw like he has since returning this year.

“I think he’s gonna play a huge role for us,’’ Boone said of the playoffs. “If we’re gonna get far in this thing, [Severino] is gonna have to pitch well. It’s nice to see him continue the trend in a really good direction.”

He has just one more test before the playoffs and it will come against a Texas team that is free-falling.

But the lack of elite competition doesn’t bother Boone.

“I think we’re seeing enough from him as far as quality of stuff [and] command,” Boone said. “Texas, that’s a team, if you make mistakes, they’re gonna make you pay. I’m very encouraged by what I continue to see.”