Carcone scored his second at 17:44. The speedy winger barrelled in from the right side, then cut into the middle ice and fired a wrist shot top shelf to make it 2-0.
The Oilers were out-shot 16-4 in the first but Starrett kept the game within reach. As a result, Edmonton's rookies were able to strike three times in the second to take the lead.
"We kind of got off to a rocky start there in the first," said Butcher. "But we regrouped in the second and finished off really strong."
Gambardella got his first of two after a nice give-and-go with Butcher. The two worked the puck from the left corner and Gambardella capped the play with a one-timer blast at 9:44.
Then, it was Paigin's turn to show how hard he can rip the biscuit. Austin Glover broke into the offensive zone from the left side. Paigin, meanwhile, approached from the middle of the ice. He raised his stick in anticipation of a pass, and when it did come his way, shot a rocket past Tatcher Demko at 11:37 to tie it up at two.
Gambardella later added his second of the period to give the Oilers a 3-2 lead at 15:37. Yamamoto got a wrist shot through a maze of bodies and Gambardella pounced on the rebound.
The Oilers took the 3-2 lead into the third period by riding the hot play of Starrett, who had 27 saves by the end of the second, while Vancouver made a goaltending change to begin the final frame.
Garteig came in relief of Demko but he didn't get a warm welcome from the Oilers rookies, as Safin scored 45 seconds into the period. He sniped a short-side wrist shot from under the left dot to give Edmonton a 4-2 lead. Butcher got his third assist of the night on the play.
"He played well," Fleming said of Butcher's week. The forward led the tournament with seven points. "He's good on draws, he's physical. He's a good kid with some skill."
Vancouver tied it up late in the third, getting goals from Jonah Gadjovich and Matt Brassard. Gadjovich greased in a goal from inside the crease while on a 5-on-3, then Brassard's floater from the point slipped through Starrett.
In overtime, the Oilers maintained much of the play. Gambardella nearly scored his hat-trick goal on a partial breakaway but his backhander was snared by Garteig.
Then Maksimov ended the game with his overtime winner - making it four consecutive years the Oilers placed first at the tournament.
"We talked about it before the tournament started: do what you do as a player to showcase your talents and I thought guys did that," said Fleming.
Next up for the rookies is a game against the Nait-MacEwan All-Stars on Wednesday at Rogers Place. Puck drop is at 7:00 PM MDT.