Monster Rancher/Dragon

How to Unlock

 * 1) In the 4th week of April, win the Trial Cup. There are three opponents, including a Dragon in this tournament.
 * 2) Win the Official B Cup to raise your monster to Rank A.
 * 3) In the 4th week of August, you will be invited to compete in an Invitational battle with a Black Dragon. When you win, you will receive a Dragon Tusk.
 * 4) Combine a Stinger (Naga/Dino) with a Grape (Dino/Naga), using the Dragon Tusk as seasoning, and get a Dragon.