Paralysis is a status effect that completely immobilizes the affected character. When a character is paralyzed, they are unable to take any actions until the effect wears off or is removed.
Mechanics
Duration: 10 turns by default, modified by Resistance from Ring of Elements
Removal: Damage has a chance to break the character out of paralysis based on their current HP vs damage taken
Visual Indicator: PARALYSIS icon appears on character's status bar
Visual Effect: Character sprite shows PARALYSED state
Sources
Weapons: Paralysis enchantment on weapons can stun enemies (not true paralysis, but Stun effect)
Arrows: Paralysis Arrows inflict paralysis when they hit
Darts: Curare Darts cause paralysis
Gases: Paralytic Gas clouds cause paralysis when breathed
Enemies: Some enemies like Yog's Brain can inflict paralysis
Armor: Warrior class skill “Shock” can cause paralysis
Immunities
The following creatures are immune to paralysis:
Ghost NPC and Mirror Images
Earth and Ice Elementals
Yog's brain, heart, and teeth
King of Dwarves
Piranhas
Ice Guardian and Ice Guardian Core
Crystal
Various undead creatures (Worms, Nightmare, Zombie Gnoll, Pseudo Rat, Runic Skull, Lich, Dread Knight)
Mimic types
Counters
Ring of Elements: Provides resistance that extends the duration of paralysis effects