The competition will crown a new premier after Dederang ended Mount Beauty’s season.
But it was a low-scoring thriller with 20 wickets falling for only 205 runs.
Dederang was skittled for just 113 from 52.3 overs as Ashan Ranaweera (5-30) and Al Randell (4-12) decimated the home side.
The minor premiers were 2-87, but lost 8-26.
“Randell swings the ball, as well as seams it off the pitch, so he’s always hard to play, while Ashan’s always crafty,” Dederang captain Steven Garoni said.
Mt Beauty was 1-14 overnight.
The visitors pushed the score to 1-34, but then lost 9-58 to be dismissed for 92.
Cameron Gregg took 3-18, but three direct hit run outs torpedoed the Power.
“Run outs are always massive, especially in finals, they’re the ultimate when it comes to building pressure,” Garoni said.
“In the first one, Andrew Creamer dived for the ball and had a direct hit at the striker’s end.
“Then Cameron Gregg ran out Ben Slocombe and Luke Deans hit the wicket at the striker’s end.
“It’d be up there with one of our best fielding days.”
Elsewhere, Wodonga defeated Lavington and Corowa scraped home against Yackandandah.
It means Dederang will host Yackandandah, while Wodonga faces Corowa.