Sculpt Spell

The material below is Open Game Content from 80 Awesome Feats and 2 Crappy Ones
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Sculpt Spell
You know how to change unimportant aspects of a spell to mask the spell’s intent.
Benefit: You can manipulate the appearance of a spell you cast, changing the color, gestures, contours and other cosmetic aspects without changing the spell itself, but making the spell harder to identify, adding +4 to the Spellcraft DC to identify the spell. The spell you sculpt must be at least one level lower than the highest level spell you can cast in that class.