Next to the Corpse Pond, there was an even larger pool.
A thousand-meter-long verdant tree trunk was submerged in it.
This was the Tree Core that Ayak brought back from the Land of Darkness.
The Tree Core possessed Earth attributes.
He adjusted his approach according to local conditions, using the "Rock Transformation Method" mentioned in the diagrams.
He refined it into the [Rock Transformation Wood], which serves as one of the pillars of the wizard tower, representing Earth attributes.
The "Rock Transformation Method" requires a large amount of Earth Element Ores, materials from Earth attribute transcendent creatures, and the spell knowledge of the Earth School of Thought.
First, the wood must be soaked and spell runes infused into it.
Then, it is placed in a high-pressure area underground.
After about a hundred years, it is catalyzed into "fossil-like" Strange Wood. This is the "Rock Transformation Wood".