Emperor Evulz has no power. In fact, he's not even an Emperor- he is an unemployed loser who lives in his mother's basement and has few, if any, achievements worth boasting about. He still claims himself to be a god, and may even believe it.
Zig Zagged: Mad with power, Evulz calls himself a god, but after a defeat at the hands of the protagonists, he realizes he is not as all-powerful he thought. He escapes and amasses even more power, gets right back at it, only to be defeated and disillusioned once more.
Evulz is a power-mad dictator, but shows no signs of any kind of god complex.
A good, humble guy is appointed to godhood, and remains a good, humble guy.
Enforced: "We need an antagonist that is a god, but is mortal and killable, so let's have the antagonist claim he has become a god, where in reality he is not."
Lampshaded: "Calling yourself a god now, Evulz? You know, that's got to be pretty high up on the list of signs of madness."
The Man Behind Evulz pretends to be a cultist and subtly pushes Evulz into believing himself a god, so that in his arrogance, he's easier to control... and dispose of, if need be.
Evulz's powers have made him a Reality Warper, but he emphatically denies that he is a god at every opportunity.
Discussed: "All reports indicate that Evulz's mind is slipping daily... he's making his followers worship him, now."
Conversed: "A god complex seems to be a required standard of entry into the supervillain club in these comic books."
Evulz's god complex is symbolic of nothing more than his complete insanity, and actually sees him lose power; as long as his underlings are careful to humour their boss, they can do as they please and he is none the wiser.
In a situation very similar to real-life versions of The Caligula, Evulz's God-complex sees him begin to rule his empire in an increasingly erratic and hubristic fashion, causing suffering and pain to everyone around him, while his own god complex turns against him, with his delusional insanity preventing him from seeing events realistically and drawing him closer to his own downfall. Things get so bad that even Evulz's trusted underlings decide they have to do something about their leader's mania.
Evulz turns out to have Hidden Depths. He's actually a Broken Ace who became so damn good at everything that his gifts caused people to follow him rather than befriend him; gradually resulting in his alienation from conventional society and self-proclaimed status as a God Emperor. Now, gaining power for its own sake is his only purpose in life and he cannot form any kind of emotional bond with others.
Reconstructed: Evulz gradually learns that his underlings haven't been taking him seriously and shows them what he really means when he claims to be a god. They don't come out of it well.
Played for Laughs:
The heroes hear that Evulz has started believing he's a god. They sneak into his lair only to find a massive party. As it turns out, Evulz DOES think he's a god. Bacchus, to be exact.
Evulz stands atop his Evil Tower of Ominousness and screams at the four winds: "Tremble before me world, AS NOW I AM THE ONE AND TRULY GOD!"... And then a Bolt of Divine Retribution fries him to a crisp while a heavenly yet calm voice quips back at him: "No, you're not".
Played for Drama:
Evulz is aware that he's losing his sanity but can't do anything about it. While believing he's a god, he ends up harming the few people he actually cared about. After being brought down to normal, Evulz is forced to face the consequences of his actions.
The heroes hear that Evulz has started believing he's a god. They sneak into his lair only to find a massive party. As it turns out, Evulz DOES think he's a god. Bacchus, to be exact. It's when the maenads start tearing animals and babies to bits in their drunken rampages that it dawns on people that this is not a good thing.