[@VitaVitaAR]

Okay, let us deal with the premise and the plot first.

Do you have a premise already in mind or would you leave that to me?

Because mine has a powerful being in charge of an organization that summons the players to hunt down a team of skilled Agents of his that had gone rogue. (Agents are pretty badass... agents that do the heaviest lifting in the organization. The team in question is highly skilled even by their standards.)

There are a couple of variations to the premise but the summoning of heroes/heroines by the powerful dude is fixed.