What the supplied sources confirm
Use the tree as part of an Archetype rather than in isolation: the supplied information connects it to race, class, equipped spells, crafted spellbooks, gear, and attributes.
The source does not provide a node map, point costs, or a respec rule. This guide deliberately avoids inventing a route until those details are documented.
Source boundary
Details that are not present in the supplied official materials are intentionally not stated as fact.