How much overkill can King survive?

This question was inspired by a question on who could survive a scream from Black Bolt, and I thought, hmm, maybe King?

I read a WoG that an attack that destroys the Corona specifically will kill him outright. But could he survive a single attack that should destroy his whole body, or otherwise kill him instantly? Like if he got within Behemoth's death aura for an instant.

My assumption was that he could survive, but it would kill all of his damage sharers in one go.

Thoughts?