What are quests for?
You can send your dragons to do quests to earn mana potions. While a dragon is doing a quest, it is unavailable for other activities. When quest is done, dragon returns with reward, but it still has to rest. Size of the reward depends on the dragon’s rarity, and the quest’s rate. Therefore, the better the dragon is, the bigger reward it will get. Time of recovery is set as three times the time of quest.