Destroy target creature. If that creature had a +1/+1 counter on it, create a 1/1 green Snake creature token.

When this creature enters, choose one —
• You gain 3 life.
• Surveil 2.
Basic landcycling

You may sacrifice three artifacts rather than pay this spell's mana cost.
Exile three artifact cards from your graveyard: Return this card from your graveyard to your hand.

Flying, menace
Whenever this creature attacks, each player gets two rad counters.
Whenever one or more nonland cards are milled, you may create that many 2/2 black Zombie Mutant creature tokens. Do this only once each turn.

Flying
Whenever this creature deals combat damage to a player, each opponent discards a card. Each player who discarded a card with the greatest mana value among cards discarded this way loses life equal to that mana value.

Flying
Whenever another creature dies, put two +1/+1 counters on Sengir.
Whenever another player loses the game, you gain life equal to that player's life total as the turn began.
Partner

Flying
Whenever this creature deals combat damage to a player, that player discards two cards.
Morph

Until end of turn, you may cast target instant or sorcery card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead. Exile Sins of the Past.

Destroy target creature. Its controller loses 2 life.

Flying
When this creature enters, create two 1/1 black Bat creature tokens with flying.
, Sacrifice a Bat: Create two 1/1 black Bat creature tokens with flying.
Sacrifice a Bat: Regenerate this creature.

Flying
When Skull Saucer enters, destroy target creature and put your head on the table. Sacrifice Skull Saucer when your head stops touching the table.

Flying
Creatures with flying your opponents control get -1/-1.

Deathtouch
: Return up to three target creature cards from your graveyard to your hand.
, Exile this card from your graveyard: Return up to three target creature cards from your graveyard to your hand.

Delve
If a creature card with flying was exiled with this creature's delve ability, this creature has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, reach, trample, and vigilance.

Flying
As this creature enters, choose two players.
Whenever damage is dealt to one of the chosen players, the other chosen player also loses that much life.

Ward — Discard a card.
Swampcycling

You may exile the top three black cards of your graveyard rather than pay this spell's mana cost.
Spinning Darkness deals 3 damage to target nonblack creature. You gain 3 life.

Destroy target creature and target land.

Flying
, Discard a card: This creature gets +2/+2 until end of turn.

Create three 2/2 black Zombie creature tokens.
Cycling
When you cycle this card, create a 2/2 black Zombie creature token.

Stolen Grain deals 5 damage to target opponent or planeswalker. You gain 5 life.

Menace

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
, , — Pain — You draw a card and you lose 1 life.
Oblivion — Each opponent sacrifices a creature of their choice and loses 3 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Gungnir — Destroy target creature an opponent controls.
Zantetsuken — This creature gains "Whenever this creature deals combat damage to a player, that player loses the game."
Hall of Sorrow — Draw two cards. Each player loses 2 life.

Reverse miracle (If this card is on the bottom of your library as you begin searching it, you may cast it by paying its reverse miracle cost.)
Exile all creatures.

Each player sacrifices three creatures of their choice. You create three Food tokens.

You may cast this spell as though it had flash by tapping three untapped creatures you control with flying in addition to paying its other costs.
Destroy all creatures. Create three 1/1 black Faerie Rogue creature tokens with flying.

Deathtouch
, Reveal this card from your hand: Put a prey counter on target creature. Activate only during your turn.
When Tetzimoc enters, destroy each creature your opponents control with a prey counter on it.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Exile target creature card from your graveyard. Create a token that's a copy of it, except it isn't legendary and is a Mutant in addition to its other types.
, Create a token that's a copy of a card exiled with this Saga, except it isn't legendary and is a Mutant in addition to its other types.

Flying, lifelink
Whenever The Haunt of Hightower attacks, defending player discards a card.
Whenever a card is put into an opponent's graveyard from anywhere, put a +1/+1 counter on The Haunt of Hightower.