No, wait, that's actually a very interesting idea. In a lot of times, a lot of the RPs I was in died before they got a chance to really get to use my characters, so I would love an RP idea like that...
I just got an idea off of that. Bare with me, I literally just made it up right now. OK, imagine there's a person, man or woman, I dunno, who has an ability called...Time Bending or Reality Bending, or something like that, and he goes through all different kinds of realities and time periods, universes, and gathers of who he believes are the strongest fighters, the bravest warriors, the most courageous souls, and gathers them up in a single, other reality.
Now, doing something so drastic like this wouldn't be for something or someone who simply kills people, or threatens to conquer the galaxy, or even conquer or enslave all realities, no. It has to be bigger...this person...I'm gonna say it is a beast, or an entity, (more better than a man or a woman) and it is aiming to do something else, something bigger: It's going to make all realities, all realms and worlds, all times and zones, never have existed at all (not sure how he has this yet, but that can be figured out). If all realities and worlds are destroyed, then nothing would have ever existed, nothing is existing, and nothing will ever exist again. Everything we know to be alive, in every place our RP characters came from, including ourselves would be gone. Not dead, just never really alive anymore, not even visible, just...not existing.
Anyways, that's just a thought I literally came up with right now...lol.