All attacks are amplified; Fire: due to outside light reflected through the crystal walls become focused like a laserbeam through the cave. Water, from the mountains only the purest water from the tops of the mountains Ice, flow through filtered mountain soil and enter into the caves streams. Air: The tunneling of badgermoles leaves outside tunnels smooth and clean, much like a ventilation system for your battle arena. And earth, movement of the ground and use of crystals will give an earth bender a defensive and tactical increase. If your smart enough.
