Evacuation!

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[Passive] Grants a chance to automatically activate Shadow Step when attacked from behind.

Requirements

Class	Level Required
Blade Master	60

More useful in PvP rather than PvE, with some exceptions, such as Fallen Chloe.
While being able to escape attacks that would be potentially lethal, Evacuation! has its risks. Raven may end up endangering himself by unintentionally strafing into an attack, a wall, or a bottomless pit.
Evacuation!'s Shadow Step level is equivalent to the player's normal Shadow Step level, otherwise it will be level 1 if Shadow Step isn't learned.
Shadow Piercing and Shadow Thrust can still be activated while during the activation of Evacuation!.
Any Skill Note affiliated with both Shadow Step and Shadow Piercing will still activate under the influence of Evacuation!.