Vast Sky Drizzle

When Jiang Ming woke up in a strange world, he learned he had obtained immortality. In the dangerous and ruthless world of cultivation, he was determined to carve his unique path. Taking advantage of his immortality, he vowed to learn forbidden skills that would normally eat away at the user’s life. 
As he continued on his path, Jiang Ming realized that with his forbidden skills, he could become the strongest. 

As An Immortal, I Only Learn Forbidden Skills

CatABoo

Jiang Ming had always been a man of his word.

After deciding on the first spell to comprehend, he devoted himself to the process of comprehending the Fireball Technique.

"What is Ning Caichen doing? Why are there explosions coming from the other side?"

At this moment, Huai Mei could not help but be stunned because there had been a commotion in the direction where Jiang Ming was. All kinds of explosions kept ringing in her ears.

At this moment, Wu Hen walked over and said indifferently, "Master is comprehending the true essence of spells and deducing even more powerful mystic techniques."

"What?! Are you joking with me? A mere early-stage Golden Core Realm cultivator wants to deduce a mystic technique? How can he do that?"

Huai Mei had a look of disbelief, thinking that Wu Hen was joking.

Raging Flames Mystic Technique