The Bloom is an impossibly ancient predator that transcends dimensions to feast on the negative emotions and suffering that it itself propagates.

In truth their greatest enemy, the Changing God proved to be a worse threat to the castoffs and the Ninth World than the Sorrow itself ever could. His ultimate solution to escape death was to create a device called the Resonance Chamber to infuse the thousands of castoffs he created into his body in a process that left them in constant agony in his mind until their very psyche was shredded into oblivion. This negligence caused the Endless Battle between him and the castoffs, which he fought with earnest by brainwashing thousands to join his armies and by using the numenera as Weapon of Mass Destruction. The castoff bodies he created gained minds of their own and the Changing God used them as nothing more than tools, often leaving them in mortal harm to save his own life. This drew the wrath of the Sorrow, the Tide's immune system, and the Changing God would throw away everything that made him human, and even abandoned his daughter to the Sorrow, to preserve his immortality. He was once a normal man who sought a way to live forever to cure his ill daughter and found a way by crafting new bodies and transferring his mind into them using the Tides.

The Changing God is a powerful immortal who brought untold torment to the Ninth World by abusing the titular Tides to fuel his eternal life.

Tides of numenera trainer