The Flames' championship also was a perfect bookend for the career of McDonald, who scored his first NHL goal at the Forum for the Maple Leafs on Oct. 17, 1973. That was the game-winner in a 5-3 Toronto victory, coming at 17:43 of the third period against Canadiens goalie Michel Larocque, details McDonald recalls with uncanny accuracy 4 1/2 decades later.
"I tell people I went top shelf. But I think it went bottom corner, even though I was trying to go top shelf," he said, laughing once more.
For now, McDonald's dream would be for the Flames and Maple Leafs to meet in the Cup Final, having played 492 games for Calgary from 1981-89 and 477 for Toronto from 1973-79.
"Because I live in Calgary and won a Cup there, I'd obviously lean toward the Flames," he said of his allegiance. "But that would be the coolest thing in the world, to have those two against each other.
"I have a tattoo on each cheek from those teams," he said in jest, "so I might as well bare my soul and show it all."
Photos: Hockey Hall of Fame; Getty Images