Invisible Spell (Metamagic)

You can cast spells that cannot be seen.

Prerequisite(s): Stealth 7 ranks

Benefit: A spell modified by this feat is invisible. All of the spell’s magical visual effects can only be seen by viewers who can otherwise see invisible things. Even creatures and objects created or summoned by the spell are invisible. This increases the Difficulty Class of Spellcraft checks made to identify the spell as it is being cast to 20 + spell level. Any mundane effects of the spell, such as damage that it causes or any permanent changes made to other creatures or objects, can still be seen normally. (e.g., a wall of stone summoned by the spell is invisible, but the modifications made by stone shape can be seen normally.) Spells which depend on visual effects, such as many illusions, cannot be modified by this feat. An invisible spell uses up a spell slot two levels higher than the spell’s actual level.