Meathook Massacre II After you get Meathook Massacre II down, everyone has to pay 3 life when their creatures die, or you steal them with finality counters
Those that fix hold value a little better but generally these are not what you are looking for
Its a staple for artifact aristocrats or reanimator builds
Slow-developing cards (like effects which count cards in your graveyard) are viable in any deck, even without great supporting synergies
Its a good amount of sacrifice fodder for aristocrat decks, and while youre sacrificing the insects Aatchik makes, it gets stronger and drains your opponents
Thrumming Stone gives all of your spells ripple 4, which means when you cast a spell, you get to look at the top four cards of your library and cast all cards with the same name as the first spell cast without paying their mana cost