It was clear they were already aware of the upheaval outside. As soon as Su Yu entered, he activated the grand formation, unleashing an overwhelming force.
Behind Su Yu's head, the Five-Color Divine Light soared into the sky to withstand the pressure. He brandished the Lightning Hammer, instantly consuming over 20 billion Mana. Over a hundred colossal bolts of destructive purple lightning erupted, precisely striking the strongest five Profound Immortal sea snakes and nearly eighty True Immortal sea snakes.
The top-grade Innate Spiritual Treasure, the Lightning Hammer, had a base power of 5 trillion plus 5000% magic damage.
Even Golden Immortals couldn't withstand a single strike, let alone mere Profound Immortals.
A series of crackling explosions erupted, instantly annihilating dozens of powerful sea snakes on the spot.
