The Mercury Dragon is the result of breeding the Metal Dragon with the Sea Dragon. The following are the vital stats of the Mercury Dragon:
| Available At | Level 16 |
| Cost | 250 Gems |
| Hatch Time | 12 Hours |
| Yields | 5,000 Stars upon hatching |
| Habitat | Sea & Metal |
| Resistant Against | Sea & Nature |
| Weak Against | Flame, Dark and Pure Sea |
| Immune Against | Terra |
| Attacks | Punch Tsunami Stunning Hit Flooding |
| Training Centre | Hard Charge Rust Judo Kick Acid Rain |
| Counter Dragons | Blizzard Dragon Vampire Dragon |
| Selling Price | 5,000 Gold |
