Trial of Stinging Doubt
Trial of Stinging Doubt is one of the Trials of Ascendancy, and is found in The Hedge Maze. It demonstrates Dart traps, which fire projectiles repeatedly in multiple directions, slowing down the player that makes him an easy prey to other traps. They deal physical damage and apply poison which greatly slows the player's movement speed.
Upon completing the trial, Izaro gives the message "An emperor must know precisely where he stands." and you are provided with a portal back to the entrance.
The map trial version is located in the right column bottom position on the trials plaque.