Alchemy
Artifact crafting
Artifacts
Average-looking protagonist
Beasts
Calm protagonist
Cautious protagonist
Clever protagonist
Cultivation
Demons
Ghosts
Hard-working protagonist
Hiding true abilities
Immortals
Loner protagonist
Low-key protagonist
Lucky protagonist
Magic formations
Male protagonist
Master-disciple relationship
Master-servant relationship
Pill based cultivation
Pill concocting
Pragmatic protagonist
Ruthless protagonist
Secretive protagonist
Slow growth at start
Special abilities
Time skip
Underestimated protagonist
Wars
Weak to strong