Make the Obsidian Crown disable all healing

[Spy_Guy]

Shoot him thrice with a laser gun.

He will not have time to heal and just vanish in a cloud of misery and pubbie tears. Lag will keep you from teleporting away until after they're gone.

This is a lot easier said than done. Lag does not keep you from teleporting, and if he's on the move, your single laser will not slow him enough to get even a second one off. I spent the entire aforementioned round with riot shotguns and a charged egun shooting him over and over, even on the ground, and he just stands up, sprints off, and keeps going
Riot shotgun slugs keep him on the ground for about two seconds maximum, it's not fun nor is it really a fix.

The guy using the crown had a spray of synthflesh that meant any time he got too injured, he was exceptionally quickly healed, and given how fast he regenerated from stuns, he was really very invincible.
He was also cloaked in the dark, and hitting him with mutadone did nothing because of the bloodstream flusher.

Welp. This is why we can't have nice things.

I'm all in favour of unleashing Marquesas the Ruiner of Fun on this one.