This fits neatly into Greens identity of gaining advantage while interacting
Want to reanimate Parhelion II with Greasefang, Okiba Boss, but also want to slam people with Hoard Hauler while drawing tons of cards off Depala, Pilot Exemplar
It is a Mylar sleeve holding the card in place
As a result, Battle for Zendikar Standard is asking the community a question similar to the one Caw Blade asked, "Are you willing to immediately spend an additional $400 to own a competitive, tournament worthy deck?" Unfortunately, $400 is a large enough amount that a meaningful portion of the player base is unwilling or unable to pay
The deck is built around maximising this loop cheap creatures to grow Animar fast, then enormous payoffs that come out turns ahead of schedule
Having a very small, select number of alternate rarity cards becomes a staple in the Mega Evolution era in the form of Mega Hyper Rare cards