So I must have missed Soaryn's stream the day he built this, and Direwolf didn't go over it in enough detail in his video, so the question for the Hivemind is this:
Automating the Wither, how to do this without having to replace blocks all the time.
It's easy enough to build the wither automatically, and you need to use the grinder from draconic evolution to kill it, but something in Soaryn's build teleports the wither inside a reinforced obsidian box before it explodes, and that's the part I have no idea how he's doing.
Soaryn was using the Thermal Expansion "Translocation Plate" to teleport the spawning Wither into the Reinforced Obsidian cage.