Unlike Phobos who looks for real action instead of games.
The mutants fight first in the danger room.
Magma has absolute control over her temperature of her power. The microwaves in the far off universe mean her temperature control expands beyond planet sized events just as she almost beat Magus during the Cypher battle.
Marvel gets pretty complex with story lines as we the fans like them too.
There's a lot more to it too. Magma should soon be able to turn off the energy of the planet. Of course she could turn it on but while it's off Magneto could fix the tetonic plates and restore telepathy to give Professor X full world view and contact again.
With Magma's help on the tetonic plates being adjusted correctly Storm will be able to generate world wide Storms and greater as well.
If Storm's power increases geometrictly and emotionally she might one day be able to generate cosmic storms and be the goddess like her mother was.