A crystal dragon is similar to that of a gem dragon in the sense that it resonates with other crystals instead of stones. These dragons are vitreous in appearance, some of their internal organs can be seen through their crystallized bodies making them more susceptible to life threatening blows as the enemy can see through to their vital points. They are fragile and crack often. Fortunately, their regeneration rate is remarkably fast. Its speed is superior to all other elements, being practically instantaneous. 

Crystal dragons depend on their magic to fly as their wings and body are too heavy to actually carry them into the skies. 

Thermochromic Crystals - These dragons, can change color depending on mood. If a crystal dragon were to get infuriated with someone its body would shift into a redder hue for example. 

Vibrations - Crystal dragons can utilize their crystals to create and manipulate vibrations. 

Redirection - Crystal dragons can steal the ability of another then send it back at their opponent twice as strong. This only works once and depletes the dragon of all their magic for that day. This means they will be unable to heal/regenerate themselves until they’ve gotten some rest. 

Crystal Constructs - The ability to create crystal formations.