White Bone Heart-Locking Hammer, the final form achieved after assembling four White Bone Heart-locking Hairpins. It inherently contains a Forbidden Technique, capable of releasing the pale and toxic White Bone Demon Fire.
Any cultivator who merely touches it will have their flesh decay, bones perforate, and their entire body reduced to ash from top to bottom; even immortals present would find it difficult to save them.
This Forbidden Technique is extremely powerful, but its flaw is that even the owner of the magic treasure cannot easily contact it, hence it can only be triggered through the White Bone Heart-Locking Hammer. Wherever the hammer strikes, the demon fire follows, burning everything in its path. However, if it encounters Tribulation Thunder, which can easily destroy magic treasures, the hammer cannot be used, and naturally, the White Bone Demon Fire cannot enter the fray.
Yan Yu's reminder provided her with this insight.
