mtg double sided cards rules Mechanic Spotlight: Modal Double-Faced Zendikar Rising Mechanics | MAGIC:

But neither card can match the absurdity of Natural Order, which, for the low, low cost of four mana and sacrificing a green creature, lets you put the best green creature from your deck directly on the battlefield, which often means your opponent staring down a Progenitus or a Craterhoof Behemoth as early as Turn 2 or 3, which is pretty wild

Multiply 0.0083 by the value of $50, and youll find this single card is adding 41.67 cents to the expected value of every pack

Key cards include Ancient Tomb, Ao, the Dawn Sky, Archaeomancer's Map, and Ashnod's Altar

Were here to break it all down for you on the CK Blog

Machinist's ArsenalMachinist's Arsenal hits an easy spot