Just don't counter the spell and have no easy way to wipe the board as Emrakul will not leave the battlefield if it doesn't enter it in the first place
Oh and theres also 12 Enchanted Rares, which go beyond the numbering of the 204 cards in the set as well, much like the Secret Rare cards youll find in games such as the Pokemon Trading Card Game
Once on a Location card, Characters will either gain an ability directly from the card or will see one of their abilities be activated as a result of being on the Location card
Calix, Destiny's Hand Calix, Destiny's Hand was one of the first enchantment-themed planeswalkers, and its also an Oblivion Ring planeswalker
It is one of the few mechanics that require specifically sacrificing a token as one of its activation requirements (although that can be an artifact or enchantment as well)
These got a whole new life in Commander, when you could actually start bargaining with them