Jiang Yuan's Soul-devouring Demon Skill had just been upgraded to Level Five, thanks to his recent diligent "disciplining" of Evil Cultivators.
Locking onto the Array and going full firepower, in less than half a minute there wasn't enough remaining Essence to sustain the Array's protection for the Evil Cultivators.
And a dozen or so who arrived a step late didn't get covered by the halo; they stood on top of the extinguished Array, so anxious they spun in circles like ants on a hot wok.
Some were shouting for help; some were yelling at the Evil Cultivators who got protected a step earlier to absolutely not start their Tribulation Crossing, otherwise once the thunderclouds thickened and heavenly thunder rolled, the thunder would sense their Evil Cultivator aura, curve over, and blast them straight into slag.
