Considering the scope of superhero comics, it was always going to be the case that a few supervillains - be they on the powered side or otherwise - were always going to prove difficult to defeat. Some villains take the principle a bit too far, however, racking up a move-set that would make even the most invulnerable of heroes nervous.
And that's what makes the medium so fun, in part. We need to see these ridiculous characters - villains so great and powerful that it genuinely would take an entire League (or two) to take them down. It can get silly at times, but when the threat level's this big, who can refuse such a hefty dose of fun in their funny books?
At times, there are villains that come along that just throw out the rulebook altogether - the kind of bad guy who demands a response so great, so fierce, that it can only be chronicled in a $3.99 weekly event comic that encroaches onto every last vestige of the universe they're currently obliterating.
While that's not a slight against them so much as it is against the industry more generally, there are positives and negatives to be gleaned for when these overpowered baddies set up shop in your favourite comic.