From Guild Wars 2 Wiki
“Assume the form of a lich for a brief time. Entering this form destroys all minions and removes other spectral effects.
- Duration: 30 s
— In-game description [?]
 Description and skills
Lich Form transforms the user into a large ghastly figure with an ephemeral green tone. The player's weapon skills are replaced with a unique set of skills.
|Deathly Claws||Send out grasping claws to damage your foes.|
|Marked for Death||10||Inscribe a mark that makes a foe vulnerable when they trigger it.|
|Chilling Wind||20||Release a freezing wind that chills and pushes back foes.|
|Mark of Horror||25||Inscribe a mark that summons five jagged horrors when a foe triggers it.|
|Grim Specter||30||Send out a claw that explodes on impact, ripping boons off of foes and curing conditions on allies.|
- As with other forms, the first 5 skills on your skill bar will change for the duration of the form, while the last 5 will be locked, destroying any active minions.
- While in Lich Form, the caster will be granted stability for the duration.
- While in Lich Form, the necromancer's base power is tripled, and base precision and vitality doubled. At level 80, this adds 1832 power, and 916 precision and vitality.
- While in Lich form it is possible to perform emotes. Lich form uses Norn emotes with a special voice over regardless of actual race