The third-tier, an apex, most professionals will never touch in their lifetime.
What differs fundamentally from the second-tier and first-tier is the so-called "self-cursing".
Becoming a third-tier professional means casting a curse on oneself, thoroughly changing something....
"I don't want to be human anymore."
Perhaps that's the idea, bones become lighter, beast's blood mingling in every corner of one's flesh, body turns wooden, shadows become the avatar, short-term elementalization...such permanent "changes" allow humans to break their own limits, start their real dehumanization, and unlock an upper echelon.
The Parasitic Tree has three layers of self-cursing.
The first curse aims to transform the Gardener from a physical perspective, granting him a half-wood and half-human constitution.
The second curse modifies at the "sense" level, granting them the communicative abilities of the plants.
