When the Calamity Flame ignites, all spearmen within the 3x3 grid are branded and transformed into thralls of a Hellish Pact. Their damage, attack speed, and dash power surge, with their spear tips whispering echoes from the abyss. When a contract bearer falls, the sky fractures, and hellfire claws down like vengeance, searing flesh and soul alike. From the ashes, the Harbinger of Calamity rises through flame reborn, carrying the fury of the original form— each strike unleashing waves of blood, followed by synchronized death tremors. This ability uses spearmen's blood as ritual fuel, turning death into a chain of catastrophe— a trinity of buffing, bursting, and summoning, forging an annihilation loop where the spear legion grows ever more frenzied in war.