The surging mana of Old Grimm slowed down abruptly following the Mana Retroaction from Lin Li. The seven Arcane Missiles lost control and vanished in an instant. Old Grimm still remained unhurried; his thin arm rose slightly and a mental protection field rose. Under the safety of the mental protection field, Lin Li's Delirium Spell was like a stone thrown into a pond, merely creating ripples on the calm water.
Both had amazing casting speed—one was swift and the other fluent. Lin Li was constantly challenging the limits of magic counter-reaction by virtue of his superior mental strength; Old Grimm relied on years of experience to minimize the length of the spell. Gerian, who watched from the side, exclaimed countless times in his heart. These two fellows—young and old—behaved nothing like a normal human being.