1. Opening the app- On your mobile device, tap the Dragon City icon.
2. Checking your level- You must be at least level 16 to be able to breed a Legendary dragon.
3. Habitat- You have to place the dragon in a habitat. Build the Legendary habitat.
4. Breeding- You’ll have to breed certain dragons in order to get the Crystal Dragon. The dragons you’ll need are the Gummy Dragon and Soccer Dragon. Go to the Breeding Grounds and select it.
5. Checking dragon levels- Check your Gummy and Soccer Dragon to ensure that they’re at a high enough level to breed. If they are not, feed both dragons until they reach breeding level.
6. Selecting the parents- At the Breeding Grounds, select the Gummy Dragon and the Soccer Dragon. Tap breed. Now the waiting begins. It will take 48 hours to breed the Crystal Dragon. If this is not successful, breed the Gummy and Soccer Dragons again until you get your Crystal Dragon.