system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Did Ironman really need the hulkbuster when his normal suite could battle thor?
gpt
When Thor first hit him, he damaged his suit, and when he grabbed him he cracked it. 

If Thor had focused on just punching him really hard he would have probably broken the suit. 

Hulk is about as strong as Thor and doesn't use lightning. As we saw, he was able to quickly damage the Hulkbuster and focused on doing that more than Thor does. He needed Hulkbuster.