Dragon Eggs are born as descendants of ancient dragons, and then stay in the place where they spawn, until they are destroyed. Eggs vary in five levels between Lv5 and the level cap. You can find the different levels of Eggs in different areas and random places. Depending on the egg and the remaining HP left on it, the Dragon Egg will usually spawn 5 groups of monsters that will automatically attack who is attacking the egg. The spawns consist of a group of monsters. It's usually recommended that you destroy eggs within max. 9 levels above your level, for optimized drop rates. Dragon Eggs are extremely popular targets because they are the most important or even almost the only source of essential items such as Fusion Stones.