The Lost Caverns of Ixalan

Acolyte of Aclazotz | Creature | Vampire Cleric | {T}, Sacrifice another creature or artifact: Each opponent loses 1 life and you gain 1 life. | Irina Nordsol

Another Chance | Instant | | You may mill two cards. Then return up to two creature cards from your graveyard to your hand. (To mill two cards, put the top two cards of your library into your graveyard.) | Irina Nordsol

Deep Goblin Skulltaker | Creature | Goblin Warrior | Menace At the beginning of your end step, if you descended this turn, put a +1/+1 counter on Deep Goblin Skulltaker. (You descended if a permanent card was put into your graveyard from anywhere.) | Cristi Balanescu

Join the Dead | Instant | | Target creature gets -5/-5 until end of turn. Descend 4 — That creature gets -10/-10 until end of turn instead if there are four or more permanent cards in your graveyard. | Olivier Bernard

Screaming Phantom | Creature | Spirit | Flying Whenever Screaming Phantom attacks, mill a card. (Put the top card of your library into your graveyard.) | Halil Ural