Effect Tree Progression
At level One we get to unlock one Core Effect Tree.
Beyond that we may spend experience points to unlock more Root Effects, Leaf Effects, or Crown Effects.
The barriers for unlocking Effect Trees are written into their entries.
Mastery unlocks the Root Effects associated with the Talents in our Core Effect Trees.
We may also spend our Experience, xps, to unlock additional Root Effects.
Branch Effects are unlocked by getting the prerequisite Mastery in Root Effects.
In many cases a certain amount of Mastery is required from multiple Root Effects to unlock a Branch Effect.
Leaf Effects are only available once a Branch Effect is unlocked.
Each Branch Effect has a pre-determined Number of Leaf Slots.
Leaf Slots may be upgrades or unrelated to the Roots & Branches.
Leaf Effects cost xps to learn.
Leaf Effects may be discarded by going through Abscission.
Crown Effects are the ultimate abilities in Vaia and cost a significant amount of Experience, xps, to unlock.
It is common to fill the tree with Leaf Effects, then go through Abscission to regain the experience needed to unlock a Crown Effect.
Unlock by Study or Apprenticeship: Some Effect Trees may be unlocked by reading special books or receiving special training.
These can not be Reserialized to gain experience.