Skeletons you control and other Zombies you control get +1/+1 and have deathtouch.

Castle Locthwain enters the battlefield tapped unless you control a Swamp. {T}: Add {B}. {1}{B}{B}, {T}: Draw a card, then you lose life equal to the number of cards in your hand.

{T}: Add {C}. {1}: Mutavault becomes a 2/2 creature with all creature types until end of turn. It's still a land.

({T}: Add {B}.)

Dread Wanderer enters the battlefield tapped. {2}{B}: Return Dread Wanderer from your graveyard to the battlefield. Activate only as a sorcery and only if you have one or fewer cards in hand.

Target player creates X 2/2 black Zombie creature tokens, then up to one target creature gets -1/-1 until end of turn for each Zombie that player controls.

Target creature gets -4/-4 until end of turn.

Lifelink If a nontoken creature an opponent controls would die, instead exile that card and create a 2/2 black Zombie creature token. {2}{B}, Sacrifice another Vampire or Zombie: Put two +1/+1 counters on Kalitas, Traitor of Ghet.

+1: Up to one target creature gets -2/-1 until your next turn. −2: Mill two cards, then you may return a creature card from your graveyard to your hand. −7: You get an emblem with "At the beginning of your end step, create X 2/2 black Zombie creature tokens, where X is two plus the number of Zombies you control."

Choose a nonartifact, nonland card name. Search target player's graveyard, hand, and library for any number of cards with that name and exile them. That player shuffles, then draws a card for each card exiled from their hand this way.

Whenever a nontoken creature you control dies, Midnight Reaper deals 1 damage to you and you draw a card.

Destroy target creature or planeswalker that's green or white. You gain 1 life.

As Sorcerous Spyglass enters the battlefield, look at an opponent's hand, then choose any card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.