Ethereal

Ethereal, sometimes referred to as ghost form, is a type of status effect that makes affected units immune to all physical damage, grants them attack immunity, while also disarming them. It also reduces their magic resistance, causing them to take additional magical damage. Affected units are able to control every other aspect of their character.

The magic resistance reduction of multiple ethereal effects does not stack, the one with higher value takes priority, and it is defined as

$m_{Eth}={\text{max}}\{\;r_{i}\}$

With r being the Magic Resistance Reduction Value.

Ethereal units are normally and fully affected by spells. However, physical damage is blocked. For example, Slithereen Crush cannot damage ethereal units, but still stuns and slows them. Ethereal state does not dispel anything.

Sources of ethereal

• Ethereal Blade - Ether Blast
  
  Magic Resistance Reduction: 40%
  Duration: 4
  
• Ghost Scepter - Ghost Form
  
  Magic Resistance Reduction: 40%
  Duration: 4
  
• Leshrac - Nihilism
  
  Enemy Magic Resistance Reduction: 30%
  Self Magic Resistance Reduction: 0%
  Duration: 4
  Aura Linger Duration: 0.5
  
• Necrophos - Ghost Shroud
  
  Magic Resistance Reduction: 40%
  Duration: 3/3.5/4/4.5
  
• Pugna - Decrepify
  
  Enemy Magic Resistance Reduction: 30%/40%/50%/60%
  Ally Magic Resistance Reduction: 25%
  Duration: 3.5 ( 5)
  

Changelog

Version

Description

6.87

• Dueling units no longer ignore disarms and ethereal state.
• Ethereal now blocks in-flight attack projectiles fully, rather than just ones launched before Ethereal. [?]

6.79c

• Dueling units now fully ignore disarms and ethereal state.

6.79

• Can no longer orb-attack while attack restricted (such as Ethereal or Frostbite).

Gallery

• 

  Ghost Scepter's Ghost Form

Mechanics Stats Armor Attributes (Strength / Agility / Intelligence) Collision size Health (Health regeneration) Magic resistance Mana (Mana regeneration) Movement speed Status resistance Turn rate Vision Attack Attack animation Attack damage Attack modifier (Bash / Cleave & Splash / Critical strike / Lifesteal / Mana break) Attack range Attack speed Cast animation Cast range Damage types Motion buffer range Projectile speed Spell damage Spell lifesteal Abilities Abilities Aura Channeling Cooldown Damage block Damage manipulation Damage over time Evasion Talents Teleport Status effects Attack immunity Break Cyclone Disable Disarm Ethereal Fear Forced movement Hex Hide Hypnosis Invisibility Invulnerability Leash Phased Root Silence Sleep Slow Spell immunity Stun Taunt World Experience Gold Glyph of Fortification Map (Minimap) River Scan Runes Time of day Trees Gameplay Creep control techniques Denying Disjoint Dispel Ganking Harassment Hero complexity Initiating Item passive stacking Item sharing Jungling Lane Pushing Random distribution Roles Trap Units Ancient creeps Buildings Couriers Creep-heroes Heroes Illusions Lane creeps Neutral creeps Roshan Summons & Wards