The Labyrinth Construction skill's features were as follows:
• Allows Vandalieu to create Dungeons. However, freely changing its floors, difficulty and interior structure was impossible at this point in time.
• Gives Vandalieu knowledge of the layout of a Dungeon's floor by stepping foot into it.
• The monsters appearing in the Dungeons have no souls. Because of this, Vandalieu is able to exercise limited control over them. In order to tame
them, he must have appropriate spirits possess their bodies.
• Allows Vandalieu and his allies to teleport between previously-cleared floors in a Dungeon.
• Allows Vandalieu to alter the structure of previously-cleared floors in a Dungeon. He can place or remove walls, doors and traps, as well as create
stairs that connect separate floors.
• Allows Vandalieu to move Dungeons. This has no effect on the interior structure of the Dungeons.
• Allows Vandalieu to teleport from the entrances of previously-cleared Dungeons to the entrances of other previously-cleared Dungeons. However, only
the insects he has equipped and astral-type Undead can accompany him when he teleports in this way.