Mind spell

Mind spell is a term for a spell that is considered to affect a creature's mind.

Mind spells:

•  Berserk
•  Blind
•  Forgetfulness
•  Frenzy
•  Hypnotize
•  Mirth
•  Sorrow

Artifacts:

• Orb of Vulnerability makes all undead creatures vulnerable to Berserk, Frenzy (only friendly creatures except hypnotized), and Hypnotize.
• Sleepkeeper  makes all of the hero's creatures immune to mind spells.

Creatures:

Some creatures have a specific immunity to mind spells. Liches and Power Liches are not immune to Forgetfulness in The Shadow of Death, but are immune to it in Horn of the Abyss (can be negated with the help of the Orb of Vulnerability).

Psychic Elementals do half damage to these creatures:

Undead:                              Skeletons and Skeleton Warriors   Walking Dead and Zombies   Wights and Wraiths   Vampires and Vampire Lords   Liches and Power Liches   Black and Dread Knights   Bone and Ghost Dragons  Mummies

Elementals:                           Air and Storm Elementals   Water and Ice Elementals   Fire and Energy Elementals   Earth and Magma Elementals   Psychic and Magic Elementals

Golems:                             Stone and Iron Golems  Gold Golems  Diamond Golems  Steel Golems

Mechanicals:                             Automatons and Sentinel Automatons    Dreadnoughts and Juggernauts

Other:   Giant and Titan  Fangarm