Aside from the inherent effect of the [Sky-breaking Spike], Song Chi also applied the speed feature of the [Pasa Zen Seal] to it.
This was out of necessity; the city shield above the Truth Holy City is a true ninth-rank shield, far stronger than that of Southern City 101, and just one void-breaking light might be insufficient.
The reality confirmed this as well.
Even with the effects of two void-breaking lights, the city shield of the Truth Holy City dimmed by less than thirty percent, and the effect was inferior to just one on the Southern City 101.
If Song Chi wished, he could summon the mirror battleship and unleash a third or even a fourth void-breaking light, which would weaken the shield below by over half.
However, he had never entertained this thought from the beginning to the end.
The mirror battleship was an important card for him to counter the [Father of Truth] later on, it couldn't be used lightly in the early stages of the fourth plan.
