From Compendium of Worldly Lore
Needs review
Source: Cityscape
Description: You can cast spells that seem to come from somewhere other than where they should.
Prerequisites:
A deceptive spell appears to come from any direction you choose. For Instance a Magic Missile might shoot down from a nearby doorway, or a lightning bolt might emerge from the floor. You cannot use this feat to gain a bonus to hit, to circumvent cover, or in any other way to gain a numerical or mechanical advantage on any attack rolls. Its purpose is to disguise the source of the spell, preventing anyone who did not actively observe you casting from recognizing you as the caster. You cannot use Deceptive spell to any spell with a range of touch, or a target of you. A Deceptive spell uses a slot one level higher than the spell's actual level.