Geralf, the Fleshwright creates a Zombie token when you cast any spell that's not your first spell that turn, Open the Graves creates a Zombie token when a nontoken creatures you control dies, and Cryptbreaker makes a Zombie token by discarding a card and tapping itself
When its removed, it replaces itself with a token that is almost as good, meaning its a lot of value for its mana cost
Onakke Oathkeeper and Jayas Phoenix, meanwhile, not only provide value in play, but can also do something from the graveyard, making them the perfect synergy cards for when were relying on Quintoirus
This eight-mana demon is a popular reanimation target in many formats, quickly taking over games with the immense amount of card advantage it provides
7 Afterlife Insurance Still In Debt, Even In Death "Draw a card" on a cheap spell is enough of an insurance plan (pun intended) to make just about anything playable, since it can replace itself when the effect isn't useful
1Fellwar Stone