10 Most Powerful Humans In DC Comics
3. Dr. Fate
This entry comes with a bit of an asterisk as technically its the Helmet of Nabu - which holds Nabu's spirit - that possesses all the power. But the helmet on its own cannot act without a host which is why Dr. Fate qualifies for this totally 100% accurate and definitive list.
One of the Lords of Order, Dr. Fate is nearly unmatched when it comes to magical prowess. When Dr. Fate had decided to destroy all of magic, Constantine knew both he and Swamp Thing could do nothing to him, so Constantine called in the Phantom Stranger.
Except even the Phantom Stranger couldn't defeat Dr. Fate, and he was sucked into the helmet. Even Zatanna - who is considered to be one of the strongest Homo Magi ever - thought she and the rest of the Justice League Dark needed help trying to take down Dr. Fate and the other Lords of Order when they were given hosts.
The spirit of Nabu is one of the oldest in existence and he possesses arguably the greatest repository of magical knowledge in existence as well. When works together with a capable host, Dr. Fate is one of the most powerful beings in DC Comics.