You see darkfield.
Location
Places where creatures with the ability to create it are found, such as the Darklight Core.
Notes
This is a field that resembles Fire, Poison Gas and Energy Field, but it has some important distinctions.
It's most important characteristic is that it gives the player the Agony Special Condition and takes 2% of the character's maximum health per second for 11 seconds as Agony Damage, which cannot be mitigated.
The Darkfield can be destroyed using Destroy Field Runes, however, it cannot be destroyed by throwing another type of field, Magic Wall Runes or Wild Growths on it.
A Darkfield lasts for 70 seconds (1 minute and 10 seconds).