Ascension
From Dungeon Defenders 2 Wiki
An account-wide system in which players continue to gain power in a limitless fashion. Harder difficulties will award greater amounts of Ascension experience. A player can start gaining Ascension Points after a hero on the account reaches level 50. Other heroes on the account however will not be able to apply these ascension points until after they reach level 50 themselves. Ascension powers can be both universal and specific for our heroes.
Ascension Powers
Soon. lol