The last time the Miami Heat’s Big 3 led a raucous pep rally inside the American Airlines Arena two years ago, they vowed winning not one, but more than seven championships. On Monday, the team and thousands of its fans were back at the scene to cash in on the first. The team officially ended its NBA championship season on Monday with a street parade that winded through Miami’s downtown streets and then later with a celebration rally where the players took turns thanking their fans. The championship trophy became the centerpiece of Monday’s festivities, a winning symbol that put a cap to almost two years of high-profile drama and two months of playoff intensity. “It’s the best feeling I’ve ever had,” said LeBron James, the team’s standout star and the league’s most valuable player. “This was my dream, right here, to be able to hoist that Larry O’Brien Trophy up, hug it, grab it, never want to let it go.” King James decided the Team Red version of the Nike LeBron 9 Low.