If it happens twice more in this series, they'll be Stanley Cup champions, again.
Brad Marchand scored for the third straight game, setting two Cup Final records in doing so, Sam Bennett scored his NHL-leading 14th goal of the Stanley Cup Playoffs, and the Panthers routed the Edmonton Oilers 6-1 at Amerant Bank Arena on Monday.
"We played super well and super disciplined, just like a veteran, older team who's been here," Florida forward Matthew Tkachuk said. "This is our third time at it. We know it's a series, and we've got to stick up for each other, but got to be smart too. I thought it was great that guys were sticking up for each other, and at the end of the day, it's just a big win and just one game."
Sam Reinhart scored for the first time in more than three weeks and had an assist, and Carter Verhaeghe and Evan Rodrigues each had a goal and an assist for the Panthers. Eetu Luostarinen had two assists, and Sergei Bobrovsky made 32 saves.
The defending Stanley Cup champions lead the best-of-7 series 2-1. Game 4 will be here on Thursday (8 p.m. ET; MAX, truTV, TNT, SN, TVAS, CBC).
"We were good today," Florida captain Aleksander Barkov said.
Corey Perry scored for the Oilers, but Connor McDavid and Leon Draisaitl were held off the score sheet. McDavid was limited to two shots on goal, and Draisaitl did not have a shot attempt.
Stuart Skinner allowed five goals on 23 shots before being replaced by Calvin Pickard (seven saves) following his fifth goal against at 3:27 of the third period.
"Obviously, not our best," said McDavid, the Edmonton captain. "I don't think our best has shown up all series long, but it's coming."
The Oilers put the Panthers on the power play 11 times. Florida scored three times. There were a combined 35 penalties totaling 140 minutes between the two teams, with each getting four for eight minutes apiece in the first period.
Edmonton had 16 penalties totaling 75 minutes in the third period, including Skinner's delay of game penalty for shooting the puck over the glass at 2:19 that led to Aaron Ekblad's power-play goal that gave Florida a 5-1 lead with 16:33 remaining.
Darnell Nurse, Trent Frederic, Mattias Ekholm, Evander Kane and Kasperi Kapanen each was out of the game early after receiving a 10-minute misconduct in the final 10 minutes of the game. Jake Walman also left early with three minor penalties at 14:44 of the third.
"Oh definitely the third period is an unraveling," Oilers coach Kris Knoblauch said. "I don't think we would have acted or played like that had the game been a one-goal or two-goal game. I don't know, boys being boys I guess, just trying to make investments for the next game."
Marchand got the Panthers going with his fourth goal of the series, scoring from the left face-off circle 56 seconds into the game for a 1-0 lead.