Energy Surge Lesser

Transmutation [see text]
Level: Sorcerer 2, Wizard 2,
Components: V,
Casting Time: 1 swift action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One weapon
Duration: 1 round
Saving Throw: Will negates (harmless)
Spell Resistance: Yes (harmless)
Source: Player's Handbook II

With a single utterance, you sheath the weapon in elemental energy—dripping acid, vaporous ice, crackling electricity, smoking flame, or thunderous air.

You temporarily imbue a weapon with elemental energy.
When you cast this spell, specify an energy type (acid, cold, electricity, fire, or sonic).
This spell is a spell of that type, and the target weapon is sheathed in that energy.
If the attack is successful, it deals an extra 1d6 points of damage of the specified energy type.