This instant, Guardian Zhi had been preparing for a long time. He had been preparing since the moment he rushed into the vice captain's office and threw the Iron Flower Bomb.
At that time, he had already activated the magnetic system on his body, attracting some "Iron Dust" to the external armor.
This was also a rather ancient and common tactic, which could even be traced back to the era of the Martial Ancestor.
The Iron Dust was incredibly fine. It was so fine that it was difficult to prevent each particle of Iron Dust from rusting while maintaining its size, so it was prone to oxidation and degradation upon release. If the Iron Dust clumped together, many of its functions would be compromised. Generally, Iron Dust is sealed inside Iron Flower Bombs and released only when needed.