Kalran: Tales of the four nations/Nightmare

"We shall show our foes true nightmare."

The Nightmare is a special support unit of the Asura War Caste.

Tactical Analysis

 * Who turned out the lights: The Nightmare swarm of flies is so dense that it blocks any outside source of light entirely, and is impermeable to radio waves and the like. With no way to contact the outside world, units trapped in the cloud are considered "lost"
 * You can still be terrified up there: The Nightmares ability to teleport renders useless any attempt to outrun or outwit a Nightmare by hiding in well-defended or elevated positions, as it will be able to ignore any obstacles by simply slipping around them
 * They will serve the cult: The Nightmares are also responsible for capturing structures to be used for the cult. But to do they they must go into the building to haunt it
 * Fear does not learn: Still, Nightmares do have their limitations. They have no sight range as the flies they control are blind (though the cloud of darkness they create would render sight useless anyway), and furthermore are incapable of direct harm