From dredge and scavenge to Ashen Ghoul and Bloodghast, this is an amazing engine at filling up the graveyard, finding the right creature, and shattering any game into little pieces over your knee
cards, the value of Fairy Tail Sleeper depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Structure Deck: Shaddoll Showdown)
Similarly, if you have no cards in hand when Case of the Crimson Pulse's last ability resolves, you won't discard any cards, but you'll still draw two cards
There are a few more little Synchro Monsters to be found
So, Monster Reincarnation, Dark Factory of Mass Production, and Backup Soldier are all run as recovery options should an Exodia limb or head find their way into the graveyard