Fellow Daoist, observe these Thunder Pillars. Not only are they the Dragon Sealing Key, sealing its Refining Veins and locking its muscles and bones, but they can also conduct lightning and transform electricity.
Once I enter the array to preside over and activate the Dragon King Seal, the power of the Dragon King will attract celestial lightning strikes. As the Heavenly Thunder descends and bounces between the three hundred Thunder Pillars, it will be refined by Thunder Power, reducing its cultivation.
The key to this array is to channel the Heavenly Thunder to weaken the Dragon King within the array as much as possible. It mustn't be too light, or if this Dragon Monarch breaks free, with thousands of years of cultivation, who could stand against it?
