DIVINE SHIELD [Cleric]     You can channel energy to make your shield more effective for defense and offense.Prerequisite: Cha 13+, Channel Energy class ability, Extra Channeling.

Benefit: Spend one of your daily channel energy abilities to channel energy into your shield, granting it an enhancement bonus equal to your Charisma modifier.  This enhancement bonus applies both to the shield’s attacks and defense, and lasts for a number of rounds equal to your Charisma modifier.