I wish it was this easy for me. I have only 3 dragons ready to evolve from 6 to 7, no other dragons on my island are below that besides baby forest dragons for bingo (cheap feeding and quick evolving), and level 3 air, water, olympus, and light dragons ready to evolve for leaderboard events. I am completely unable to level any other dragons unless I deem them battle arena worthy, and only a select number are leveled sufficiently enough (14 or 15) for where I want them. With how the tales are you can't piss away 30,000+ food for even one feeding, and I plant upgrapes all day.