Merlin's Freezing Spell, mixed with the Greater Freezing Spell, was astonishingly powerful, almost infinitely close to a First-Level Spell. Moreover, his immense mana allowed him to cast it continuously without interruption, making it even more formidable.
The cloaked man's Brilliant Wind was indeed powerful as well. One after another, the attacks forced Merlin to expend even more mana to cast Earth Guardian; otherwise, he simply could not withstand them.
"Dark Mist!"
This time, Merlin cast the enhanced version of Dark Mist. Even the silver-haired old man, whose Mental Power had nearly reached the peak of the second level, had been briefly held back by the enhanced Dark Mist.
Therefore, Merlin was very confident in the enhanced Dark Mist.
However, when he cast the enhanced Dark Mist and enveloped the cloaked man, a powerful surge of Mental Power shot into the sky and directly locked onto Merlin.
Merlin's expression changed slightly upon sensing that Mental Power. It was so immense that it was even more terrifying than the silver-haired old man's, nearly reaching the level of a Third-level Spellcaster.
Merlin's enhanced Dark Mist might have been able to hold back Spellcasters with peak second-level Mental Power, but against the Mental Power of a Third-level Spellcaster, it had no effect whatsoever.
"Thunder Web!"
Since the enhanced Dark Mist was useless, Merlin could only fight head-on. He immediately cast the enhanced Thunder Web.
For a time, massive bolts of lightning flashed in the sky while dense ice crystals covered the ground. Threads of icy air rapidly swept toward the cloaked man.
"Earth Wall!"
Earth elements swiftly surged from the cloaked man's body. These earth elements were far more powerful than Merlin's Earth Guardian and rapidly condensed into a thick wall.
Although the cloaked man's Earth Wall was merely an ordinary First-Level Spell, it