Energy Strike
(Conjuration/Summoning)(Summoning)

Range:  2 yards per level
Components:  V, S, M
Duration:  Instantaneous or 1 round per level
Casting Time:  7
Area of Effect:  One creature
Saving Throw:  1/2

In order to cast this spell, the caster must have negative plane protection cast upon him. That spell gives the caster a connection to the positive material plane. By means of energy strike, the caster is able to draw extra energy from the connection and cast it against an opponent. The caster forms a narrow bolt of raw positive energy, which strikes the desired creature. Living creatures must save versus spell or be stunned for 2d6 rounds. Undead* get 1d4+1 points of damage per level of the caster (save versus spell for half). Any inanimate object must save versus disintegration (with +4 bonus) or be blown to pieces.
The caster is also able to use the extra energy to Cloak himself in it. This option reduces the duration of negative plane protection to 1 round per level. The caster is surrounded by a visible aura of shimmering energy. This can be sensed by intelligent undead* to be positive energy, and they can opt not to attack the caster. Any energy drain attacks are saved against with a +4 bonus and attacking undead* always gets 1d4+1 points of damage per every two levels of the caster (no saving throw).
The material components of this spell are the holy symbol of the priest and a wand of platinum worth at least 500 gp. This wand is not consumed by the spell, it only directs the energy surge to desired direction.

* This also goes for creatures from the lower planes. The magic resistance of these creatures is reduced by 1% per level of the caster, because positive energy is very hard for them to resist.

