system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel]Can The Hulk be Killed?

Just to clarify I don't mean what is the best way to kill the hulk, (that seems to be tranq Bruce Banner and then take him out before he hulks out... or whatever) My question is if Bruce is already hulked out can he actually be killed, it seems almost like a paradox the more you can actually hurt the Hulk the angrier he gets and thus the stronger he gets so you hurt him less and less.
gpt
Definitely: The end of the universe. Considerable amounts of Xanax. Like, an ocean of the stuff. Start firing darts at Banner - he'll go hulk before he realises they aren't toxic, and hopefully enough of it will manage to get into his system before it is burnt through by his regenerative capacity.

Possibly: The Scarlet Witch, before she accidentally (purposefully) depowered herself. Galactus and other similar 'concept' beings could jump all over him. He's strong, and has infinite potential, but there's a point where they can just overwhelm him - Galactus is hunger personified. Rogue's powers offer the potential; but it depends what happens first: Hulk's life force is sucked away, or Rogue's 'pool' fills up and she explodes. Or whatever.

Would remove but not kill him: Throw him into a black hole, the center of a star, etc. You'd have a few billion years hulk-free!