Innistrad: Crimson Vow

Heron-Blessed Geist | Creature | Spirit | Flying {3}{W}, Exile Heron-Blessed Geist from your graveyard: Create two 1/1 white Spirit creature tokens with flying. Activate only if you control an enchantment and only as a sorcery. | Jason A. Engle

Nebelgast Beguiler | Creature | Spirit | {W}, {T}: Tap target creature. | Andreas Zafiratos

Skywarp Skaab | Creature | Zombie Drake | Flying When Skywarp Skaab enters the battlefield, you may exile two creature cards from your graveyard. If you do, draw a card. | Steven Belledin

Rot-Tide Gargantua | Creature | Zombie Kraken | Exploit (When this creature enters the battlefield, you may sacrifice a creature.) When Rot-Tide Gargantua exploits a creature, each opponent sacrifices a creature. | Filip Burburan

Unhallowed Phalanx | Creature | Zombie Soldier | Unhallowed Phalanx enters the battlefield tapped. | Nicholas Gregory

Lacerate Flesh | Sorcery | | Lacerate Flesh deals 4 damage to target creature. Create a number of Blood tokens equal to the amount of excess damage dealt to that creature this way. (They're artifacts with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") | Pauline Voss

Falkenrath Celebrants | Creature | Vampire | Menace (This creature can't be blocked except by two or more creatures.) When Falkenrath Celebrants enters the battlefield, create two Blood tokens. (They're artifacts with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.") | Anna Steinbauer

Moldgraf Millipede | Creature | Insect Horror | When Moldgraf Millipede enters the battlefield, mill three cards, then put a +1/+1 counter on Moldgraf Millipede for each creature card in your graveyard. (To mill a card, put the top card of your library into your graveyard.) | Simon Dominic