After two transmigrations, Bai Yuan first transmigrates to a wizarding world and becomes a wizard.
The second time, he transmigrates back to the real world, only to discover that it is an era when everyone changes class, and that he has just awakened as a wizard himself!
But in everyone's eyes, the wizard class is the worst class of all, with no contest. Its class talent is useless, and it cannot level up, so everyone sneers at him.
Everyone thinks Bai Yuan will lose heart and become a good-for-nothing, but instead he creates meditation techniques that run automatically. He can level up without killing monsters, and running several meditation techniques at once lets him level up even faster than by killing monsters.
He collects monster corpses and makes puppets. He doesn't need to fight personally: the puppets alone are enough to slaughter bosses.
He dissects boss corpses and extracts their bloodlines, then creates a new class for wizards with his own hands.
He develops bloodline potions. Become my follower and drink one, and even if you can't level up by killing monsters, you'll still gain tremendous power as an ordinary person.
And you call this the weakest class?
This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.
It's too deliberate. The wizard profession cannot be upgraded.