Stealth
The hero can move in ways that cannot be detected, whether while moving or if subjected to later Tracking. When the hero uses Stealth, his rank is subtracted from the efforts of those detecting him.
Example: Shadowfox has Ex(20) Stealth. He cannot be detected by Ty means (that is less than Shift 0). Unfortunately, it's Wolverine who's Tracking him with Mn(75) ability. Shadowfox's Stealth lowers Wolverine's chance of finding him to merely Am(55).
Range: None.