I just became a mage, and my skills have become supernatural? What the heck?

(The rating is low at first, but it will rise later.)
[Lighthearted] + [Refreshing Read] + [Wealthy Family Background] + [Anthropomorphized Skills]
Lin Mo transmigrated to a world where everyone could change jobs, and awakened as a [Blank Mage] with no elemental affinity.
Without specific talents, one cannot learn advanced elemental skills.
Fortunately, he comes from a prominent family, so Lin Mo is prepared to lie down and live a leisurely life as a rich second-generation heir.
But at that moment, his skills became incredibly powerful!
[The "Fireball" spell believes it possesses the power of a forbidden spell and is unwilling to be merely a lighter!]
To prove itself, it ran away from home and began a frenzied slaughter!
[Congratulations! Your "Fireball" spell has evolved into "Multiple Explosive Fireballs"!]
[Congratulations! Your "Fireball" spell has evolved into "Explosive Spiral Dragon Bullet"!]
【…】
[Congratulations! Your "Fireball" spell has grasped the true essence of fire and evolved into—the Crimson Lotus of Annihilation!]
Moreover, as Lin Mo's level increased, the newly learned skills began to act strangely one by one...
While other mages were still painstakingly killing monsters to level up, Lin Mo was lying under a parasol drinking iced juice, while his skills were already going on a killing spree!
……
Years later, the abyss cracked open, trillions of demons descended, and the world was plunged into despair.
Lin Mo sighed helplessly, "Stop fighting over it, today... you're all allowed unlimited firepower."
The next second, the world lost its color.
Fire, earth, water, lightning, wood, light, darkness, time, space... all forbidden spells bloomed like fireworks!
Billions of demons and gods were annihilated in the radiance of endless forbidden spells.
The demon roared in a trembling voice, "What kind of monster are you?!"
Lin Mo exhaled a smoke ring and shrugged helplessly:
"I've said it so many times, I'm really just a mage."