The terrain of the Builder Tree Mountain Range was semicircular. Using the mountain range as the main focus, in the valley below, two gigantic sealing immortal formations were set up and they were known as the Builder Tree Battlefields.
The Perfected Immortals of the Nine Firmament Immortal Domain and the Arhats of the Pure Land of Bliss competed in their respective regions. They were independent and did not interfere with one another.
The elimination round in the Builder Tree Battlefield was open to every Perfected Immortal.
Participating Perfected Immortals would obtain a badge called the Builder Tree Badge.
Once injected with True Essence, the Builder Tree Badge would activate a defensive barrier that was connected to the immortal formation. No matter what danger they encountered, they would survive.
An expert at the Perfected Immortal realm was an irreplaceable support for any sect or faction.
