Shield, Improved (3.5e Spell)
From D&D Wiki
|Casting time:||1 Standard Action|
|Duration:||Instantaneous, 1 Minute/Level (D)|
Improved Shield creates an invisible, tower shield-sized mobile disk of force that hovers in front of you. It negates magic missile attacks directed at you. The disk also provides a +6 shield bonus to AC. This bonus applies against incorporeal touch attacks, since it is a force effect. The Improved Shield has no armor check penalty or arcane spell failure chance. Unlike with a normal tower shield, you can’t use the Improved Shield spell for cover.