You have learned to reduce the arcane spell failure chance caused by wearing armor.
Benefit: When wearing armor that you are proficient in, the arcane spell failure chance of your armor is reduced by 10 percent. This feat has no effect on the arcane spell failure chance caused by shields.
Special: You may not gain this feat more than once. However, its effects stack with arcane spell failure reductions from other sources.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.