Transmutation
Level: Druid 3, Mystic Ranger 3, Ranger 3
Components: V, S
Casting Time: 1 standard action
Range: Personal
Target: You
Duration: 1 hour/level (D)
Warmth fills your feet, and as you glance down, you see that your feet have changed shape slightly, enabling you to better traverse a particular type of terrain. You also notice a shift in the colour of your skin and clothing to match the colours most commonly found in your environment.
You change your colouring and attune your footfalls to one specific kind of terrain (aquatic, desert, plains, forest, hills, mountains, marsh or underground). While you are in terrain of that kind, you gain a +10 competence bonus on Hide and Move Silently checks. You retain these bonuses even if you leave the designated terrain and return within the duration of the spell.
Source: Spell Compendium (Page 98), Complete Adventurer (Page 149)