Dragon frittata

This achievement is pretty straight forward, you just need to find yourself a legendary creature's unattended unborn offspring to steal and raise as your own. It sounds tough but in all honesty this achievement is cake. There are a few dragon eggs in the game, for the easiest one you need to wait until the Desert Reign holds one of its moon festivals. You can tell when this is happening by the incense burners and lamps visible on buildings in the reign from the world map on certain nights. Simply enter the reign and head to the festival plaza, then approach the desert raider looking guy toward the top right of the area. He'll say that he's found something out in the desert and hopes to sell it to someone for 2000 swirlies. Buy it and you'll quickly discover that what you've purchased is in fact a genuine dragon egg and, by extension, a spiffy achievement to match.