How does Track Hidden work?
Unlike other Tracking spells, Track Hidden does not automatically show you every hidden creature within range. Minimap dots will only show for “hidden but visible” things like friendly Druids or really close enemy Rogues. The real value is that your stealth detection is also boosted considerably. A level 70 Rogue will be detected as a level 64 Rogue. Track Hidden is three times more potent than Catseye Elixir and cancels out Master of Deception/Feral Instinct talents twice over.