Aether

=Important Note=

The negative growth that scales with your challenge points only continues to scale until Aether is unlocked. Therefore, it is technically optimal to unlock Aether as soon into your game as is feasible. Ultimately, unlocking Aether is a judgement call to make. Be sure to plan around the evo's of pets which require a minimum growth/level/stat requirement of every pet you own ie., Robot, Shark, Phoenix, Slime, and Bag.

= Delirious Essence of the Forgotten = When you go into newbie ground with Aether Ring in your party items, you will fight this boss. It becomes stronger each time it is defeated. Each time it is defeated it will improve the pet Aether, raising its campaign gains and also giving it a growth bonus of 0.2*Total Challenge Points (Total at the time of fighting). There is no limit/cap to how many times you can do this, as long as you can defeat Delirious. You will need to defeat it 25 times to evolve Aether. You do not need to bring Aether along when you go to fight the boss.