Adapting Armour (Any Armor Type)

You have a +1 bonus to AC while wearing this armor. In addition this armor alters itself and its wearer to better suit the wearer's needs and survive the Terrain they are in, transforming into the armor type you wish to wear and, Depending on the terrain, you benefit from one of the following effects:

1. Arctic: You have resistance to cold damage, immune if already resistant. In addition you and your equipment are unharmed by temperatures as low as -45°C.
2. Mountain: You have advantage on strength checks and your jump distance is tripled. In addition you’re acclimated to high altitude, including elevations above 20,000 feet.
3. Desert: You have resistance to fire damage, immune if already resistant. In addition, you do not require water to survive.
4. Coastal/Underwater: you have a swimming speed equal to your walking speed. In addition you can breath underwater.
5. Forest/Swamp: You have advantage on constitution saving throws. In addition your movement is unaffected by difficult terrain.
6. Grassland/Hill: Your movement speed is doubled. In addition you are able to blend and take the hide action when only lightly obscured.
7. Underdark: You gain darkvision out to 120ft. In addition you gain a +5 to stealth checks.
8. Urban: You can add a d4 to all your Charisma checks directed at humanoids. In addition you gain a +5 to your passive perception.

This armor consists of a fitted metal chest piece worn with supple leather. Although it leaves the legs and arms relatively unprotected, this armor provides good protection for the wearer's vital organs while leaving the wearer relatively unencumbered.