Thousands of Years of Tide

Once every ten thousand years there is a tide, the boundary wall collapses, and the three realms knock on the door. The demonic tide arrived first. The powerful clans broke through the city, the royal clan beheaded, and the generals suppressed the battle. Bianhuang Xiongguan was on fire all night long. He was originally the son of the First Dynasty's Zhenbian Prince. He came from time to time and started building foundations. He was extremely talented, but he understood that when an individual's great power finally comes to an end, once the military formation becomes powerful, it will overwhelm the territory and lock the ground. Even the fusion of geniuses will be difficult to defeat. If you want to protect tens of billions of creatures, you don't rely on passion, but on turning the entire pass into a living formation and turning the army into an unsheathed sword. So he used his understanding to deduce the military formation and regain the rhythm with the formation: stopping the collapse of the rotation, counterattacking the city gate, cutting off the feathers to counterattack, breaking the momentum and cutting the flag... From guarding a pass to pushing the front line, from a city formation core to a war zone flag. When the Commander-in-Chief of the Demon Realm's Royal Court arrives in person, geniuses emerge in endlessly, and the pollution of the Abyss and the Star Abyss warships are also approaching in the tide - what he has to do is not just to win a battle, but to fight for a way out for the five holy lands to recast the boundary wall. If the great pass is not retreated, the human race will never be destroyed.