It will count all your dragons that are level10 currently in your island and inside the hibernation cave and even that are sold after the purchase of shrine.
When you level up 50 dragons of a shrine's respective element to level 10 then the shrine will become silver. This unlocks the ability to level your dragons of that element to 15.
When you level up 50 dragons of a shrine's respective element to level 15 then the shrine will become gold. This unlocks the ability to level your dragons of that element to 20.
Once a dragon reaches level 11, it receives an orb of its primary element above its head. Once a dragon reaches level 20 it receives a rotating golden crown.
Not exactly +1 habitat per level. On level8 and level10 you wont get add'l habitat, but on level17 you'll get +2 habitat. In all you'll get 34 habitats reaching level35(max)
When you put your egg on display you wont receive anything, but you can still sell it at original price when you decided to, but can never be hatch.
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