You ask the divine
to intervene on your behalf, usually against a
creature within long range, changing the course
of its life in a small way by introducing a major
special effect upon it. The major special effect is
akin to what occurs when you roll a natural 20
on an attack. If you want to try for a larger effect,
and if the GM allows it, you can attempt a divine
intervention with a more far-reaching effect,
which is more like the kind of GM intrusion
initiated by the GM on their players. In this
case, Divine Intervention also costs 4 XP, the
effect may not work out exactly like you hope,
and you may not make another plea for divine
intervention for a week.