By including a swath of card types in your deck, and having ways to smartly fill your graveyard, you can gain some pretty powerful benefits on your creatures and spells by hitting the four or more different card type requirement.
Crypt Rats Full disclosure: Ive been known to find ways to talk or write about rats in Magic content because I have pet rats and I love them
Thats not too hard of a deal to make (especially since they get to draw two cards), but its something to keep in mind nonetheless
You've learned plenty about the House, and the House has learned plenty about you
Blood in the Snow, for instance, isnt quite what youd hope for during the holidays
Many of the villains from the Final Fantasy series are represented by double-faced cards in this set, allowing them to transform into their final forms once you meet the appropriate conditions