Most devastating event

Whata is the most devastating event, or most dangerous item in your respective worlds?

"On Vireth, Earth, it would be the walking dead. They wiped out 99% of the planet's population.

On Oran it would be the imperial golds. They slaughter many people in the name of the empire. Ironically they support the democratic regime, not the overthrow in favor of Letum.

On Aethere the runestones are super common. Lots of enchanting going on, which is quite dangerous.

On Xav, the most devastating weapons would be Vireth firearms. Became very popular, very fast.

On Kraia it would be those with powers in their blood. That would be the worst on Vireth bar the apocalypse or atomic weaponry.

On Terradine it would probably be the North Oryndal, or Wynark people."

Karthas sighed and leaned back in her chair. "I think that's enough questions for one day."