Improved Mage Armor

Unapproachable East (Una)Updated Forgotten Realms (3.5)

Improved Mage Armor is a D&D 3.5 spell (Conjuration (Creation)) from Una. On class lists for Sorcerer (Level 3), Wizard (Level 3), Abjurer Variant (Level 3), and others. Range or area: Touch; Saving throw: Will negates (harmless); Duration: 1 minute/level (D); Casting time: 1 standard action.

School
Conjuration (Creation)
Casting Time
1 standard action
Components
V, S, M
Range
Touch
Target
One creature
Duration
1 minute/level (D)
Saving Throw
Will negates (harmless)
Spell Resistance
Yes (harmless)

You create an invisible but tangible field of force around the subject of the spell.
This provides an armor bonus to AC of +3 + 1 per 2 caster levels, to a maximum of +8 at 10th caster level.
Unlike mundane armor, improved mage armor entails no armor check penalty, arcane spell failure chance, or speed reduction.
Since improved mage armor is made of force, incorporeal creatures can’t bypass it the way they do normal armor.
Material Component: A tiny platinum shield worth at least 100 gp.