We can use Neoform and sacrifice any number of our three-mana creatures to cheat it into play
The cream of the crop, though, is the Enchanted Rare variant of Belle, Strange but Special, which features borderless artwork of the Disney heroine in her iconic yellow ballroom dress whizzing across library bookshelves on a ladder, books and papers flying everywhere
Reaper King is interesting in that, on its surface, it's a Scarecrow lord that grants Scarecrows +1/+1, something we had done many times before
Most successful decks play it pretty close to the chest, as the big 10 2-color pairs are all fairly well-supported
A staple of sideboards in Modern ever since that format appeared, Leyline is absolutely a stopgap card for those players who abuse the graveyard