When you manifest this power, you are protected from the vagaries of destructive energies directed against you. All variable numeric effects of the next power, psi-like ability, spell, or spell-like ability that affects you before the end of your next turn is decreased to its minimum possible value.
For instance, if you are struck by an energy ray augmented to deal 5d6 points of damage while protected by damp power, you would take only 5 points of damage.
If the power, psi-like ability, spell, or spell-like ability affects an area—as does energy ball, for example—its effect is only minimized for you. Other creatures in the area are affected normally.
Beneficial numeric effects are likewise damped when you manifest this power.
If you spend 4 additional power points, the next power, psi-like ability, spell, or spell-like ability that affects you and also affects an area is minimized for all creatures you designate within its area (not just for you).