This takes the form of a transparent, colored energy field projected a short distance from the caster's arm. When it is defeated, it shatters like glass and any remaining damage strikes the arm used to block.

Damage Resistance 25 [38] 
    Reduced Time 1 [+20%] 
    Force Field [+20%] 
    Cosmic (Defense) [+50%) 
    Ablative [-80%] 
    Directional (Front) [-20%] 
    Requires Active Defense Roll [-40%] 
        DX/2 + 3, +1 for Combat Reflexes, + Enhanced Block level 
    Magical [-10%] 
    Spell Components [-10%] 
        Must block attack with hand 
Levels 2-10 [45/53/60/68/75/83/90/98/105] 
    Add 5 DR [+25 to base]