Resist Negative Energy

Swaddling your ally in a protective field drawn by your hand like a blanket, you guard him against negative energy attacks.

The warded creature gains partial protection against negative energy effects.

For as long as the spell lasts, it subtracts 10 from the hit point damage dealt by any negative energy effect (such as an inflict spell) that adversely affects it. At 7th level, the reduction becomes 20, and at 11th level the reduction becomes 30.

Negative energy effects that don’t deal hit point damage to the subject, such as an energy drain spell, affect the subject normally.