Talk:Hibernation Cave/@comment-4926893-20120406015402/@comment-71.193.49.174-20120409005442

I think they mean if you level up a dragon to level 10 then sell it so you can get the level 15 thing, then later when you want to get the level 20 one then you don't have to get another dragon and feed them to level 15. If you had just kept the dragon, you won't need to level it up to level 10, because it already is. Make sense?