He tried to create a way for demon dukes to evolve and grow stronger but he got a promising explosive device. Instead of bypassing the requirement for Authority and allowing the evolution of demon dukes, the upgrade empowers the body of the demon dukes with unstable energy and puts them in a state too powerful for their state of existence to handle. They end up exploding. It is a lesson that the rules, limitations, and restrictions are there for a reason.
The tree father is being careful in using its avatar here in the Zargoth plane to try to acquire another domain. It has decided on the domain of order and the sun. Those domains are open for the taking now that there is no god with them. The best thing is that the Tree father doesn't need to start afresh with a new church. It already has believers and can just add another title to its name. So it became the God of Life, Order, and Sun.
