Crystal is an ice-type dragon that can be obtained in 3-30 and starts at level 18. Crystal has higher attack and defense than other dragons and can freeze opponents, giving you an additional turn.
Crystal's special abilities are Ice Rain and Ice Cube. Chrystal's ice rain starts off with 3ice rain shards from the sky. When the bomb ice rain is level 8 it fires 4 ice rain shards instead of 3.
In order to obtain Crystal, you must first collect 8 egg pieces, meaning you need to beat her at least 8 times.