Non-living
Non-living (or sometimes unliving) is a term that refers to all creatures that have never been alive. For example, all non-living creatures are immune to Vampire Lords' life drain. The term non-living was officially introduced in Shadow of Death manual, where in the description of Elixir of Life (a combination artifact) stated that the artifact "does not work on Undead or non-living creatures". Additionally, Golems and Elementals are considered to be non-living creatures in Heroes of Might and Magic III.
Stone and Obsidian Gargoyles are also considered non-living, but they are still affected by morale and mind spells.
All non-living creatures are unaffected by the following spells and abilities
Mind Spells
Creature Abilities
Azure Dragon: Fear
Ghost Dragon: Aging
Lich and Power Lich: Death Cloud
Mighty Gorgon: Death Stare
Pit Lord: Summon Demons
Vampire Lord: Life Drain
Wyvern Monarch: Poison
Zombie: Disease