Civilians who live in a superhero-oriented world will find themselves, almost on a weekly basis, being kidnapped by a supervillain or find out that the city has been taken over by aliens. As scary as this sounds, it should all work out in the end. After all, it's only a matter of time before the Justice League or the Fantastic Four nip in to save the day.
But what if the heavy hitting Supers are busy? What do you do if Batman gets lost in time or Captain America is temporarily dead or Thor is trapped in another dimension? Who comes to your aid then?
Now, if there are thousands of superheroes populating the planet, surely someone else will save the day, right? They may not be as well-known or as skilful as the X-Men or the Avengers but it doesn't matter so long as they're there to help, surely.
Sadly, some vigilantes just aren't reliable. Superheroes can be erratic, dangerous, bad-tempered, or highly radioactive. Even if you found yourself in the direst situation possible, these are the last superheroes you would want to save you.
10. Jack Of Hearts
After Jonathan Hart was exposed to Zero Fluid, his cells were left constantly charged with excess energy, allowing him to shoot concussive blasts at will. Taking on the name, Jack of Hearts, the card-themed superhero became an Avenger. Since his power made him unable to run out of power, he was regarded as one of the most powerful members.
Over time, the fission process with his cells accelerated, causing him to build up too much energy. Eventually, the Avengers realised Hart would detonate like an atomic bomb unless he dispersed vast quantities of energy every day. As a result, they used Jack less and less in a field, knowing he was a danger to everybody around him. To help him, his team built a sealed room which Jack had to sit in for 14 hours daily to disperse his excess power.
Although he assumed this was a temporary inconvenience, Hank Pym alerted him that his condition would get worse. With no way to reverse the condition, Jack realised he was delaying the inevitable. Terrified that he would lose control of his powers and kill civilians, Jack flew into space and sacrificed his life by voluntarily exploding.