[quote=@Izaka Sazaka]
<Snipped quote by Card Captor>

I actually have a plot of sorts mapped out beyond just the school thing that's going on, more to be revealed later. As for a tone shift, perhaps in the future, though I don't believe it would be possible to make things [i]too[/i] dramatic when most of the player characters are gods in their own rights.
[/quote]

I suggest you check out a Manga called Jojo's Bizarre Adventure. In it, they proceed to make things dramatic when most of the characters are godlike in their own rights. Here's a small list of [i]some[/i] of the more out there abilities;

Stopping time (hell, [i]two[/i] people have this power)
Restoring things to their previous state
Stealing things. Including non-physical like eyesight and [i]friction[/i]
Speeding up time so much that the universe restarts
Using [i]fucking bubbles[/i] to create a bunch of lasers by focusing the sun's light through them like they were lenses
[i]Nullification of Cause and Effect!!![/i]

JBA is a really batshit insane series. Hell, most of our character's powers would fit right in there.