Buehrle had allowed nine runs and 21 hits in 13 innings earlier this spring, but bore down in his last outing.
"Just with the lights, in a big-league stadium, there's something about it. It's easy to know to flip that switch," he said. "It's a totally different feeling. It's kind of hard to explain."
Blue Jays manager John Gibbons sensed that he was watching a different pitcher than he saw much of the exhibition season.
"He got hit around a little bit in spring training," Gibbons said. "He's a veteran guy, he knows it's his last start and he turned it up a notch. Same way with Lee. They've been around a long time, they know what it takes and they know what they need to do."
"Two of the better ones in the game. They've both had great careers. They both work fast, they both command. It was fun to watch," he said.
Buehrle is making a return to the American League, where he spent 12 years with the Chicago White Sox before a one-year stint with the Miami Marlins last season. A four-time All-Star, the left-hander has won double-digit games in each of the last 12 seasons.
And, like Lee, Buehrle looked like that pitcher on Friday night.
"I felt great," Buehrle said. "Good way to go into the season."
The outing was almost too good, the pitcher said.
"I was kind of disappointed that I felt so good," Buehrle said. "I wish I would've saved it for a different game when it counted."
NOTES: The Phillies announced a crowd of 32,164 that braved a chilly, 52-degree evening that felt colder due to a strong wind blowing in from center field. ... The teams complete their spring training schedule at 1:05 on Saturday. Phillies RHP Kyle Kendrick is scheduled to face RHP Josh Johnson.