Invisibility (D20 Modern Skill)
From D&D Wiki
 Invisibility (Dex; Armor Penalty; Trained Only; Power)
Check: Using this skill allows for a character to become invisible for a period of time as the spell Invisibility using the check result to determine the length of time that the character can remain invisible, the character can dismiss the effect at any time as a free action. All other aspects of the spell remain the same as if you had casted the spell upon your self.
|Length of Invisibility||Check DC|
|1 round per level||10|
|1 minute per level||15|