Guild Wars 2

It is pretty useless and anyone that tested this or even look at the description knows why.

I would like that you morph into an invulnerable, vaporous mist for a brief time(Mist form) after every kill after an x amount of cooldown. You cannot attack or use skills while in mist form.

I envision this to be a great WvW sigil. You stomp a player and retreat back to the zerg. In PvE, You are in a situation where you are surrounded by mobs and you have low hp(A fairly common situation for me). You swap to your weaponset that has sigil of water and kill a trash mob with low hp, then you become a mist and escape away. In sPvP, it may be too clunky for players to use.

Sigil of Sanctuary will always last for 1-2 second throughout all the tiers. However, it requires charge. Minor sigil will require 3 charge, major sigil will require 2 charge, superior sigil will require 1 charge,