system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] How would you go about killing the Hulk?

Assume that you are a person with the powers of enhanced strength, speed, agility, intelligence and you possess limited superfast regeneration (You can regenerate your head from your main body if need be but regeneration takes up energy.) How would you kill Bruce Banner AKA The Incredible Hulk?
gpt
For all the Hulk's strength, he's harmless if you can suspend him a couple hundred feet above the ground.  Steal one of the Wizard's anti-grav disks and use your enhanced physical abilities to attach it to the center of the Hulk's back.

Once you've made the Hulk harmless, steal a force bubble projector from SHIELD or Hydra, and set it to block air circulation.  Put a big bubble around the Hulk - too big for him to affect with air blasts from smashing his hands together - and wait for him to asphyxiate.

The most dangerous part of this is placing the anti-gravity disk - there's a good chance the Hulk will grab you by a limb before you get clear of him and use your painfully bruisable body to smash the anti-grav disk.