Lin Qi transmigrates into a wizarding world as an apprentice wizard specializing in biological modification, with a Proficiency System of his own.
So...
He gives a lizard bat wings, transforming it into a vicious yet adorable draconic creature.
He transplants acid-secreting stomach lining into a man-eating flower to strengthen its digestive system.
He equips a poisonous mushroom with a mouth, turning it into a little puff-shroom.
Eyeball transplants, organ modifications, extra limbs... One bizarre, otherworldly life-form after another is born in Lin Qi’s hands.
Every experiment increases his proficiency.
Every lesson adds to his knowledge.
He rises from a minor wizard to the master of the world, progressing from modifying low-grade magical plants to creating angels.
A wizard story about steady cultivation and gradual progress.
The protagonist is composed and low-key, careful in his actions, grounded in his thinking, and gets along well with others.
The story focuses on worldbuilding, with rigorous logic and detailed settings.