It's a card that both the art and the name play into each other, making you question what exactly it is, and why the eye is so evil
Or quest with him as a trap, leading the opponent to challenge him and take that 1 damage that leads into the combos
Boseiju, Who Shelters All We have to take a moment to shout out Kamigawas lands
(It's an artifact with ", , Sacrifice this token: You gain 3 life.") Whenever you sacrifice a Food, you may pay
Sludge Monster is much harder to interact with than Auras when it comes to altering creatures, and its an excellent answer to cards like Avacyn, Angel of Hope or Sisay, Weatherlight Captain
This is an example of a mechanical theme we just did on a handful of cards and didn't worry about every color getting a card with the callback