The Lost Caverns of Ixalan

Deathcap Marionette | Creature | Fungus | Deathtouch When Deathcap Marionette enters the battlefield, you may mill two cards. (You may put the top two cards of your library into your graveyard.) | Svetlin Velinov

Echo of Dusk | Creature | Vampire Spirit | Descend 4 — As long as there are four or more permanent cards in your graveyard, Echo of Dusk gets +1/+1 and has lifelink. | Domenico Cava

Fanatical Offering | Instant | | As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Map token. (It's an artifact with "{1}, {T}, Sacrifice this artifact: Target creature you control explores. Activate only as a sorcery.") | Raluca Marinescu

Fungal Fortitude | Enchantment | Aura | Flash Enchant creature Enchanted creature gets +2/+0. When enchanted creature dies, return it to the battlefield tapped under its owner's control. | Izzy

Mephitic Draught | Artifact | | When Mephitic Draught enters the battlefield or is put into a graveyard from the battlefield, you draw a card and you lose 1 life. | Lauren K. Cannon

Skullcap Snail | Creature | Fungus Snail | When Skullcap Snail enters the battlefield, target opponent exiles a card from their hand. | Maxime Minard

Tithing Blade // Consuming Sepulcher | Artifact // Artifact | | When Tithing Blade enters, each opponent sacrifices a creature. Craft with creature {4}{B} ({4}{B}, Exile this artifact, Exile a creature you control or a creature card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) // At the beginning of your upkeep, each opponent loses 1 life and you gain 1 life. | Michael Walsh