Invisibility (mechanic)

:Were you looking for the Mage spell, Invisibility? 
Invisibility is a mechanic that renders the owner unseen. Unlike stealth, it is of magical origin. There is no chance to detect an invisible target without a detection effect. However, detection effects reveal invisible units at any range. Even when detected, invisible units are transparent and do not display a name tag.
Just like Stealth, Invisibility comes undone if you take most actions other than movement. This does not necessarily apply to mobs, most of whom remain invisible when attacked. While invisible, the player can only be seen by party members, and those with special invisibility detection (see below).
There are only a few items in the game that provide invisibility. They are: (requires level 23 to use; lasts 15 seconds with a 10-minute cooldown), (requires level 37 to use; lasts 18 seconds with a 10-minute cooldown), (requires 200 Engineering to use; lasts 10 seconds with a 1-hour cooldown) and Invisibility Field (requires Engineering 500 to use; lasts 15 seconds with a 5-minute cooldown). The only spells which allow invisibility are the Mage's Invisibility and the Warlock's Succubus' Lesser Invisibility. All currently available invisibility effects are limited to their caster.
=== Invisible mobs ===
There are several invisible mobs in the world. There are the Lordaeron Citizens in the Ruins of Lordaeron in Tirisfal Glades, the Unseen in Raven Hill in Duskwood, the shades of Naxxramas and the infamous invisible patrols in Dire Maul West.
Then there are the Eyeless Watchers in the 3 main encampments in the Eastern Plaguelands and of course the Stratholme Eye of Naxxramas.
 
Other than those in Dire Maul and Eastern Plaguelands, however, most invisible mobs of the world tend to be neutral, and won't attack unless provoked, which means that you wouldn't know they were there unless you had invisibility detection or happened to hit them with an AoE (in which case they would engage you, but remain invisible).
There are also the Skulking Witches in the Arcatraz.
== Invisibility detection ==
There are a few items and abilities in the game that provide limited ability to see through invisibility:
* Hunter's Mark allows the hunter to see the afflicted target through stealth or invisibility
* Vendetta allows the rogue to see the afflicted target through stealth or invisibility
* (requires level 29 to use; lasts 10 minutes) grants a very minor degree of invisibility detection
=== Mobs with invisibility detection ===
Each of the major cities has patrolling guards with Stealth and invisibility detection abilities, and some mobs in instances (some were added to Stratholme in patch 1.6, for example) can also detect some grade of invisibility.
=== Tables of invisibility and detection ===
Invisibility Level	Duration	Source
100 	5 min 	Succubus' Lesser Invisibility
100 	15 sec 	
200 	10 sec 	
200 	18 sec 	
340 	20 sec 	Invisibility
unknown 	15 sec 	Invisibility Field
Detection Level	Duration	Source
100 	10 min 	
==In the RPG==
The spell is named incorporeality.World of Warcraft: The Roleplaying Game, pg. 243-244 
==References==
Category:Game terms