Who said "The only thing I regret is that they did not suffer more."?

This quote is attributed to Drax.

The only thing I regret is that they did not suffer more. - Drax

"The only thing I regret is that they did not suffer more."

Drax Justice

"I am Groot."

"Nothing goes over my head. My reflexes are too fast. I would catch it."

"I live for the simple things. Like how much this is going to hurt."

"Do you know what it's like to live every second of the day with the feeling that you're about to cry?"

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."