Construct

Constructs are either animated objects or any type of artificially constructed creatures. Most constructs are non-intelligent automatons with neither a soul nor a purpose beyond service to their creator. Because few constructs are truly alive, usually operated only by a "spark" of life, most are immune to attacks that target the living. These "dead" constructs possess low-light vision and darkvision and are immune to mind-altering, poison, sleep, paralysis, stunning, disease-related, and death effects. Neither do these constructs require sleep or take part in any metabolic activities, such as eating or breathing.

The major exception to this rule is living constructs, which include warforged.