They're allowing you to create your own nemesis? What kind of a villain will you create to counter your champion?

A Psychotic killer ninja.

I'll have a sibling for the Nemesis. Usually I'll have the estranged brother, but I don't mind going for a sister who's fed up with the ideology of the Hero.

Maybe the father or mother wants to control the world, but the Hero just won't stand for it.

One of my heroes will be called Ted from accounting.
Ted has awesome mind powers.
His Nemesis will be Bill from Human Resources.
Bill is jealous of teds awesome powers, so bill has guns. many many guns.

Looks like Bill and Ted are going to have an Excellent Adventure. Maybe even a Bogus Journey. Ah, good one. Joking aside, I like the idea Bartuca.

I've got a new nemesis idea for my Heroes. Evil clone. Standard Superhero hazard, sometimes the bad guy makes a copy, or the hero does, and things get a little out of hand. Negative costume color, copied powers, negative hair color and different hairstyle, and an evil perversion of the name. Like Omniblade's clone is Negasword, or something like that. It's a work in progress.

Or, a Reversed evil clone from another dimension or timeline. Still with the negative costume color, but reversed powers. Still with negative hair color but with the same style and an opposite name. Like a Hero with ice powers and psychic ability that is part machine, his Reversed clone would have fire and super strength and be pure flesh and blood. Therefore the Hero, Omega, would have to fight his clone, Alpha, while relying on his mechanical upgrades to win the fight, perhaps using an energy shield to stop the flames or his jetpack to avoid them.

And last but not least, good clone gone bad. Same name (At first), same powers, same costume, but twisted. Whereas the real Omega fights for justice and believes that there is yet hope for the good of humanity, the Dark Omega is the polar opposite. Created by an evil scientist, Dark Omega first helps his original, but over time he questions things Omega never questioned. War, weapons, greed, and the typical sins of humanity, Omega believed that there was something more to humanity that could be saved. Dark Omega saw the same sins, but having been created on Earth while the real Omega had come from another world, he saw them in a different light. He comes to the conclusion that justice is the only way to make humanity realize their mistakes, but the judicial system is flawed and cannot be trusted. When he tries to turn Omega and fails, only one will survive the events that follow... Okay, now I have to write a fanfic about this. That sounds way too good not to have it's own comic book for crying out loud.