It took effect, but not completely. This means that Abyss Wanderer Artorias's counter trait indeed caused damage.
[Deadly Weakness: Legendary Trait: In the darkness, deadly weaknesses shine like stars, waiting for heroes to clear the mist and lead the enemy's power into the abyss of destruction. Congratulations to you brave warriors who oppose the darkness, you have discovered a deadly weakness, but are you really sure this is her flaw and not yours? Audrey permanently reduces her resilience by 30% to grant her controlled undead the ability for a deadly strike. Undead directly controlled by Audrey deal 150% of their attack damage to the attacker when they suffer critical strike damage (this damage cannot be blocked)].
This trait taking effect means that the Blood-colored Demon Shadow will suffer damage equivalent to 150% of its own physical damage. With this sword strike, even the health bar of the Blood-colored Demon Shadow visibly decreases by a segment.
