divination enchantment 

Traditions divine, occult

Cast [>] somatic, verbal

Area 15-foot emanation centered on you

Duration sustained up to 1 minute

You infuse the air around you with a sustained hum that allows creatures within it to resist distractions. The DC of any flat check to Cast a Spell while stupefied for creatures within the area is 2 lower. Confused creatures in the area don't attack anyone, including themselves, and instead lose the ability to speak coherently. You take a –2 penalty to Stealth checks to Hide and Sneak.

Dark Archive, page 105.