The Wrecker very quickly turns his influx of power to his advantage and ends up in a brutal struggle with the Son of Odin. He actually defeats Thor in their first meeting, dropping a building on him. But The Destroyer shows up and knocks The Wrecker for a loop.
The Wrecker doesn't return until many moons later. He and Thor tee off again, this time their battle reaches a conclusion and Thor does indeed emerge victorious. But it's a very hard-won victory.
When next we see The Wrecker he is not alone. He has shared his magical might with some fellow prisoners giving birth to The Wrecking Crew. The crew consists of The Wrecker, Thunderball, Pile-Driver, and Bulldozer. The Wrecking Crew would become a Marvel baddie mainstay, debuting in the pages of The Defenders, but showing up in a multitude of Marvel Comics for many many years. They supplied the raw power for many a grouping including a later incarnation of the Masters of Evil and notably during Marvel's first Secret Wars.
The Wrecker has proven to be a sturdy villain.