3% reduced Damage taken per Ghost Shroud Every 2 seconds, gain a Ghost Shroud, up to a maximum of 3 When Hit, lose a Ghost Shroud and Recover Energy Shield equal to 5% of your Evasion Rating 
Ghost Dance is a notable Ascendancy passive skill for the Trickster. It generates a Ghost Shroud every two seconds, up to a maximum of three Ghost Shrouds. When hit, a Ghost Shroud is removed and recovers energy shield equal to a percentage of your evasion rating. This skill also grants damage reduction per Ghost Shroud on you.
The character must be hit in order for a Ghost Shroud to recover energy shield. This means that defencive mechanics that negate hits, such as evasion, dodge and blocking, will prevent Ghost Shrouds from recovering energy shield when hits are negated. This is true even if the negated hit still deals damage, as would be the case with a hit blocked by a character with Glancing Blows.
Now grants +3% to chance to evade while you have Energy Shield (from +5%), 2% reduced damage taken per Ghost Shroud (from 3%), and when hit, causes you to lose a Ghost Shroud and recover Energy Shield equal to 4% of your Evasion Rating (from 5%).
Reworked. It now causes you to gain a Ghost Shroud every second, up to a maximum of 3, 3% reduced damage taken per Ghost Shroud, when Hit, lose a Ghost Shroud and recover Energy Shield equal to 5% of your Evasion Rating, +5% chance to Evade while you have Energy Shield, and 10% increased Movement Speed while you have Energy Shield.