How to Land Glancing Blow
When you use a glancing blow, it will deal thirty percent less damage than normal against a raid-level mob, with the damage reduction being cut by ten percent for every level similar to that of your Tabula Rasa credits. You are able to only land glancing blows against targets that are equal to or higher than your own level. You can cut neither the chance to use a glancing blow nor the damage punishment. Remember that you can only land a glancing blow against NPC not other players.