(Transforms from Matzalantli.)

Fathomless descent — : Add X mana of any one color, where X is the number of permanent cards in your graveyard.

Players play a Magic subgame, starting at 1 life and using their libraries as their decks. For the rest of the main game, if a source would deal damage to a player who didn't win the subgame, it deals double that damage to that player instead.

Assist (Another player can pay up to of this spell's cost. You choose the value of X.)

Support X. (Put a +1/+1 counter on each of up to X target creatures.)

Each creature with a +1/+1 counter on it gains trample until end of turn.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — For each player, destroy up to one target creature that player controls. For each creature destroyed this way, its controller creates a 3/3 green Mutant creature token with deathtouch.

II — Target nontoken creature becomes a 6/6 legendary Horror creature named Fenric and loses all abilities.

III — Target Mutant fights another target creature named Fenric.

Affinity for Daleks (This spell costs less to cast for each Dalek you control.)

Other Daleks you control have haste.

At the beginning of combat on your turn, each opponent faces a villainous choice — That player sacrifices a creature they control, or you create a 3/3 black Dalek artifact creature token with menace.

, : Roll a d20 and subtract the number of cards in your hand. If the result is 0 or less, discard your hand.

1–9 | Return a card at random from your graveyard to your hand.

10–19 | Draw two cards.

20 | Put a creature card from any graveyard onto the battlefield under your control. When that creature dies, its owner loses the game.

The Dross Pits enters the battlefield tapped.

: Add .

, , Sacrifice The Dross Pits: Draw a card.

Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.)

I — The Elder Dragon War deals 2 damage to each creature and each opponent.

II — Discard any number of cards, then draw that many cards.

III — Create a 4/4 red Dragon creature token with flying.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Each opponent sacrifices a creature or planeswalker.

II — Each opponent discards a card.

III — Put target creature or planeswalker card from a graveyard onto the battlefield under your control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Search your library for a Doctor card, reveal it, put it into your hand, then shuffle.

II — Create a Food token and a 1/1 white Human creature token with "Doctor spells you cast cost less to cast."

III — Create a token that's a copy of target creature, except it's a legendary Alien named Prisoner Zero.

The Enigma Jewel enters the battlefield tapped.

: Add . Spend this mana only to activate abilities.

Craft with four or more nonlands with activated abilities (, Exile this artifact, Exile the four or more from among other permanents you control and/or cards in your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

, Sacrifice another creature: The Ever-Changing 'Dane becomes a copy of the sacrificed creature, except it has this ability.

: You may cast a spell with suspend from your hand. If you do, pay its suspend cost rather than its mana cost. Activate only as a sorcery.

Choose target opponent. Destroy target land that player controls. The Fall of Kroog deals 3 damage to that player and 1 damage to each creature they control.

At the beginning of your upkeep, The Fallen deals 1 damage to each opponent and planeswalker it has dealt damage to this game.

Peaceful Coexistence — At the beginning of your end step, put a +1/+1 counter on each creature you control that didn't attack or enter the battlefield this turn. Untap those creatures.

When The First Doctor enters the battlefield, search your library and/or graveyard for a card named TARDIS, reveal it, and put it into your hand. If you search your library this way, shuffle.

Whenever you cast a spell with cascade, put a +1/+1 counter on target artifact or creature.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)

I — Create a 1/1 white Human Soldier creature token.

II — Put three +1/+1 counters on target creature you control.

III — If you control a creature with power 4 or greater, draw two cards.

IV — Create a Gold token. (It's an artifact with "Sacrifice this artifact: Add one mana of any color.")

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — You may put a creature card from your hand onto the battlefield. If its mana cost contains , it enters the battlefield with a number of +1/+1 counters on it equal to the number of lands you control.

II, III — Double the number of each kind of counter on target creature you control.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Discard your hand.

II — Draw two cards.

III — If a red source you control would deal damage to a permanent or player this turn, it deals that much damage plus 2 to that permanent or player instead.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Water Always Wins — Whenever The Flood of Mars attacks, put a flood counter on another target creature or land. If it's a creature, it becomes a copy of The Flood of Mars. If it's a land, it becomes an Island in addition to its other types.

The Foretold Soldier must be blocked if able.

The Foretold Soldier can't be blocked by more than one creature.

Whenever The Foretold Soldier deals damage, exile it face down. It becomes foretold.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

When The Fugitive Doctor enters the battlefield, investigate.

Whenever The Fugitive Doctor attacks, you may sacrifice a Clue. When you do, target instant or sorcery card in your graveyard gains flashback until end of turn. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create a 1/1 white Human Noble creature token with vanishing 3 and "Prevent all damage that would be dealt to this creature."

II — Create a 2/2 white Horse creature token with "Doctors you control have horsemanship." (They can't be blocked except by creatures with horsemanship.)

III — Whenever a creature you control deals combat damage to a player this turn, time travel.

Trample, haste

Whenever The Gitrog, Ravenous Ride deals combat damage to a player, you may sacrifice a creature that saddled it this turn. If you do, draw X cards, then put up to X land cards from your hand onto the battlefield tapped, where X is the sacrificed creature's power.

Saddle 1

Vigilance, trample

Whenever The Golden-Gear Colossus enters the battlefield or attacks, transform up to one other target double-faced artifact you control. Create two 1/1 colorless Gnome artifact creature tokens.

The Grand Calcutron can be your commander.

When The Grand Calcutron enters the battlefield, each player's hand becomes a program (an ordered row of revealed cards).

Players can only play the first card of their program.

If a card would be put into a player's hand from anywhere, that player reveals it and places it anywhere within their program instead.

At the beginning of each player's end step, if that player's program has fewer than five cards, they draw cards equal to the difference.

Exile target permanent, then put it into its owner's hand. That player discards that card, then puts it on top of their library. Then they put it onto the battlefield.

This spell costs less to cast, where X is the greatest power among creatures you control.

: Add . You gain 2 life.

Whenever a nontoken creature enters the battlefield under your control, put a +1/+1 counter on it and draw a card.

(As this Saga enters and after your draw step, add a lore counter.)

I — The Great Work deals 3 damage to target opponent and each creature they control.

II — Create three Treasure tokens.

III — Until end of turn, you may cast instant and sorcery spells from any graveyard. If a spell cast this way would be put into a graveyard, exile it instead. Exile The Great Work, then return it to the battlefield (front face up).

Menace, trample, lifelink, hexproof

Whenever The Grim Captain attacks, each opponent sacrifices a nonland permanent. Then you may put an exiled creature card used to craft The Grim Captain onto the battlefield under your control tapped and attacking.

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.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — For each opponent, gain control of up to one target nonlegendary creature that player controls for as long as The Horus Heresy remains on the battlefield.

II — Draw a card for each creature you control but don't own.

III — Starting with you, each player chooses a creature. Destroy each creature chosen this way.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)

I, II, III — Create a 1/1 black and green Insect creature token.

IV — Sacrifice any number of creatures. Search your library and/or graveyard for a creature card with mana value less than or equal to the number of creatures sacrificed this way and put it onto the battlefield. If you search your library this way, shuffle.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Create a 3/3 green Beast creature token.

II — You may sacrifice a creature. If you do, search your library for a creature or basic land card, reveal it, put it into your hand, then shuffle.

III — Up to two target creatures each get +2/+2 and gain trample until end of turn.

Trample

Whenever a creature you control deals combat damage to a player, draw a card.

Crew 3

You may cast The Indomitable from your graveyard as long as you control three or more tapped Pirates and/or Vehicles.

(As this Saga enters and after your draw step, add a lore counter.)

I — Exile target nonland permanent an opponent controls.

II — Return up to one other target nonland permanent to its owner's hand. Then each opponent discards a card.

III — Exile this Saga, then return it to the battlefield transformed under your control.

Whenever equipped creature deals combat damage to a player, look at that many cards from the top of your library. You may exile a nonland card from among them. Put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost.

Equip

(As this Saga enters and after your draw step, add a lore counter.)

I, II — Each opponent sacrifices a creature unless they discard a card.

III — Exile this Saga, then return it to the battlefield transformed under your control.

This spell costs less to cast for each instant and sorcery card in your graveyard.

You have no maximum hand size.

At the beginning of your upkeep, put a knowledge counter on The Magic Mirror, then draw a card for each knowledge counter on The Magic Mirror.

Body Thief — When you cast this spell, you may exile a creature you control and put a takeover counter on it.

You may have The Master, Formed Anew enter the battlefield as a copy of a creature card in exile with a takeover counter on it.

: Target creature an opponent controls with power less than or equal to The Master's power gains skulk until end of turn. Goad it. (A creature with skulk can't be blocked by creatures with greater power.)

Whenever a creature with skulk deals combat damage to one of your opponents, put a +1/+1 counter on The Master and draw a card.

When The Master, Transcendent enters the battlefield, target player gets two rad counters.

: Put target creature card in a graveyard that was milled this turn onto the battlefield under your control. It's a green Mutant with base power and toughness 3/3. (It loses its other colors and creature types.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I, II — Mill two cards, then you may return a creature card from your graveyard to your hand.

III — Return all land cards from your graveyard to the battlefield, then shuffle your graveyard into your library.

Whenever you untap one or more permanents during your untap step, put that many time counters on The Millennium Calendar.

, : Double the number of time counters on The Millennium Calendar.

When there are 1,000 or more time counters on The Millennium Calendar, sacrifice it and each opponent loses 1,000 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Return target instant card from your graveyard to your hand.

II — Return target sorcery card from your graveyard to your hand.

III — Until end of turn, whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy.

At the beginning of your upkeep, put a time counter on The Moment.

, : Untap target creature you control. It phases out until The Moment leaves the battlefield.

, : Destroy each nonland permanent with mana value less than or equal to the number of time counters on The Moment. Then sacrifice The Moment. Activate only as a sorcery.

Deathtouch

Whenever The Most Dangerous Gamer enters the battlefield or attacks, open an Attraction.

Whenever you open an Attraction, put a +1/+1 counter on The Most Dangerous Gamer.

Whenever you claim the prize of an Attraction, destroy target permanent.

When The Mouth of Sauron enters the battlefield, target player mills three cards. Then amass Orcs X, where X is the number of instant and sorcery cards in that player's graveyard. (Put X +1/+1 counters on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)