Shortly after the trade became public, James posted on Instagram, "Truly happy for my bother. It's how it's supposed to be. Love you my guy!"
James tagged the post with, "WadeCountyBack."
Before that Wade's wife, actress Gabrielle Union, posted on Twitter emojis of the sun, fire and palm trees followed by, "305 Home!!! Let's goooooooo Heat!!! Can't. Wait."
For a team on a five-game losing streak, Thursday returned a winning buzz back to the practice court at AmericanAirlines Arena.
"You joking or are you for real? For real?" center Hassan Whiteside said as the news was breaking. "I love D-Wade. Deee-Wade! I love D-Wade, man -- throw them lobs."
Whiteside is among several players with the team from Wade's last action as a member of the Heat, when the team closed within one game of the Eastern Conference finals in 2016.
"It's crazy. I mean it's a steal. It's a steal," said guard Tyler Johnson, who broke into the NBA as an understudy to the franchise's all-time leading scorer. "I couldn't imagine it happening like this, but obviously we'll take a Hall of Famer back. You know Wade County and all that.
"Who could have called it? Nobody called D-Wade coming back for a second-round pick. It sounds made up. It sounds like a 2K trade."
"I was like, 'What?!' " said guard Josh Richardson. "But it's awesome to have him back with us. He can come back and be a great leader for us."
To a degree, Wade returns when needed most, with the Heat lacking a veteran perimeter closer beyond Dragic at the ends of close games, and with guard Dion Waiters out for the season following ankle surgery last month.