Dragon-Kami's Egg Color Indicator: Green Enchantment Creature Egg Whenever this creature or a Dragon you control dies, you may cast a creature spell from among cards you own in exile with hatching counters on them without paying its mana cost
For the English, though, that 1515 is still a huge number, roughly the same as getting a textured foil out of the OTP subset of Outlaws of Thunder Junction
There may be some players who disagree with me on this, but I think that protection , durability , and price are the main things you need to pay attention to
It can force your opponents to return lands to their hand (say in combination with one of the better bounce spells on this list), which can enable some brutal combos
Seeing an opportunity with the return of Sarkhan Vol to Tarkir, the two are now at least temporarily allied as they work to bring about another movement like the Khanfall