Blocking Terrain represents solid environmental features, such as massive rock formations or solid walls, that occupy a defined physical footprint within the Play Area. These obstacles function as absolute barriers to maneuverability and visibility for all Units. A Unit is strictly prohibited from entering or concluding any movement within the footprint of a Blocking Terrain piece.
- No portion of a Unit Base may overlap the boundary of the Blocking Terrain during the resolution of any movement effect. If the intended Path of a Unit is obstructed by the terrain boundary, the player must adjust the movement to bypass the obstacle. Any movement that would result in a Base overlapping or passing through the footprint is categorized as an illegal move and cannot be resolved.
- Blocking Terrain completely obstructs Line Of Sight. Units are prohibited from establishing a Line Of Sight through any portion of the terrain footprint to Nominate a Target positioned on the opposite side. This obstruction prevents the declaration of any offensive resolution. Line Of Sight is only established if a Trace can be drawn between Unit Bases without intersecting the Blocking Terrain boundary.