Soul Armor (3.5e Maneuver)

''The necromancer brought his vile blight upon you, but as the black miasma approached it slammed into an invisible shell around you. Not today necromancer, your foul magics will not work this time!''

When you initiate this maneuver you gain spell resistance equal to your HD + 10 until the beginning of your next turn. Once initiated, you cannot lower your spell resistance until the duration ends.