At the beginning of each end step, create X 1/1 white Spirit creature tokens with flying, where X is the number of tokens you created this turn.

At the beginning of your upkeep, put a spore counter on Thallid Devourer.

Remove three spore counters from Thallid Devourer: Create a 1/1 green Saproling creature token.

Sacrifice a Saproling: Thallid Devourer gets +1/+2 until end of turn.

, Sacrifice another creature: Thallid Omnivore gets +2/+2 until end of turn. If a Saproling was sacrificed this way, you gain 2 life.

, Sacrifice a creature: Draw a card.

Indestructible

As long as your devotion to blue is less than five, Thassa isn't a creature.

At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control.

: Tap another target creature.

Draw three cards. Target player mills three cards.

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Whenever Thassa's Emissary or enchanted creature deals combat damage to a player, draw a card.

Enchanted creature gets +3/+3.

: You may tap or untap target creature.

Counter target spell unless its controller pays , where X is your devotion to blue. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

Create three 1/1 red Human creature tokens with haste. Sacrifice those tokens at the beginning of the next end step.

, : Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

At the beginning of your end step, if you control seven or more lands, transform Thaumatic Compass.

Flying

When Thaumaturge's Familiar enters, scry 1.

Double team

When Thayan Evokers enters the battlefield, conjure a card named Lightning Bolt into your hand, then discard a card.

Whenever you conjure one or more cards, put a +1/+1 counter on Thayan Evokers.

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

I — Exile a permanent card from your graveyard. You gain life equal to its mana value.

II — Put a number of +1/+1 counters on target creature you control equal to the mana value of the exiled card.

III — Return The Aesir Escape Valhalla and the exiled card to their owner's hand.

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

I — Gain control of target creature for as long as The Akroan War remains on the battlefield.

II — Until your next turn, creatures your opponents control attack each combat if able.

III — Each tapped creature deals damage to itself equal to its power.

At the beginning of your end step, exile up to one target legendary creature card from a graveyard with a memory counter on it.

: Until your next turn, target legendary creature you control becomes a copy of target creature card in exile with a memory counter on it. Activate only as a sorcery.

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

I, II — Choose target nontoken creature you control that doesn't have the same name as a token you control. Create a token that's a copy of it, except it isn't legendary, is a Reflection in addition to its other types, and has haste.

III — Sacrifice all Reflections you control.

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

I — Incubate 2 five times, then transform all Incubator tokens you control.

II — Creatures you control get +1/+1 and gain double strike until end of turn.

III — Destroy all other permanents except for artifacts, lands, and Phyrexians. Exile The Argent Etchings, then return it to the battlefield (front face up).

Trample, haste

When The Balrog of Moria dies, you may exile it. When you do, for each opponent, exile up to one target creature that player controls.

Cycling (, Discard this card: Draw a card.)

When you cycle The Balrog of Moria, create two Treasure tokens.

Trample

When a legendary creature an opponent controls dies, put The Balrog, Flame of Udûn on the bottom of its owner's library.

Destroy all creatures with power 3 or greater. Then create a Food token for each creature you control. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

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

I — Create a 2/2 blue Shapeshifter creature token with changeling.

II — Any number of target Shapeshifter creatures you control have base power and toughness 4/4.

III — Choose up to one target creature or planeswalker. Each creature with power 4 or greater you control deals damage equal to its power to that permanent.

Whenever The Belligerent attacks, create a Treasure token. Until end of turn, you may look at the top card of your library any time, and you may play lands and cast spells from the top of your library.

Crew 3

, : Roll a six-sided die. Create a number of 1/1 red Brainiac creature tokens equal to the result.

Tap three untapped Brainiacs you control: The next time you would roll a six-sided die, instead roll two six-sided dice and use the total of those results.

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

I — Each player mills three cards.

II — Exile up to two target cards from graveyards. For each creature card exiled this way, you gain 1 life.

III — Return target creature or land card from your graveyard to your hand.

Creatures your opponents control get -1/-1 until end of turn. The Ring tempts you.

You may choose not to untap The Blackstaff of Waterdeep during your untap step.

Animate Walking Statue — , : Another target nontoken artifact you control becomes a 4/4 artifact creature for as long as The Blackstaff of Waterdeep remains tapped. Activate only as a sorcery.

At the beginning of your end step, if you gained 3 or more life this turn, create a 3/3 white Angel creature token with flying.

, , Exile The Book of Exalted Deeds: Put an enlightened counter on target Angel. It gains "You can't lose the game and your opponents can't win the game." Activate only as a sorcery.

Creature tokens you control get +1/+0 and have lifelink.

At the beginning of your end step, create a 1/1 white and black Spirit creature token with flying.

Enchant creature

Enchanted creature gets +1/+0.

: Regenerate enchanted creature.

Those Who Came Before — This spell costs less to cast for each historic card in your graveyard. (Artifacts, legendaries, and Sagas are historic.)

Exile any number of historic cards from your graveyard with total mana value 30 or greater: You get an emblem with "Creatures you control have base power and toughness 9/9."

Each creature card in your graveyard has scavenge. The scavenge cost is equal to its mana cost. (Exile a creature card from your graveyard and pay its mana cost: Put a number of +1/+1 counters equal to that card's power on target creature. Scavenge only as a sorcery.)

Whenever chaos ensues, create two 1/1 white Warrior creature tokens.

If it's neither day nor night, it becomes day as The Celestus enters.

: Add one mana of any color.

, : If it's night, it becomes day. Otherwise, it becomes night. Activate only as a sorcery.

Whenever day becomes night or night becomes day, you gain 1 life. You may draw a card. If you do, discard a card.

Target creature gets +3/+0 and gains first strike until end of turn. Investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

When you planeswalk to The Cheetah Planet and at the beginning of your upkeep, put two +1/+1 counters on target non-Cat creature you control. It becomes a Cat in addition to its other types.

Whenever chaos ensues, all Cats gain provoke until end of turn. (Whenever a Cat attacks, its controller may have target creature defending player controls untap and block it if able.)

(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.

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

I, II, III — Exile cards from the top of your library until you exile a legendary card. You may play that card for as long as The Day of the Doctor remains on the battlefield. Put the rest of those exiled cards on the bottom of your library in a random order.

IV — Choose up to three Doctors. You may exile all other creatures. If you do, The Day of the Doctor deals 13 damage to you.

, : 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.

Creatures enter tapped.

Whenever chaos ensues, for each opponent, choose up to one target nonland permanent that opponent controls. Untap those permanents. They phase out. They can't phase in for as long as The Doctor's Childhood Barn remains face up. When a player planeswalks, those permanents phase in.

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

I, II — You gain 2 life. Look at the top three cards of your library. Exile one of them face down with a hatching counter on it, then put the rest on the bottom of your library in any order.

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

Whenever you roll the planar die, creatures you control get +1/+1 and gain haste until end of turn.

Whenever chaos ensues, end the turn. (Exile all spells and abilities from the stack. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

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 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.)

No more than one creature can attack The Eternal Wanderer each combat.

+1: Exile up to one target artifact or creature. Return that card to the battlefield under its owner's control at the beginning of that player's next end step.

0: Create a 2/2 white Samurai creature token with double strike.

−4: For each player, choose a creature that player controls. Each player sacrifices all creatures they control not chosen this way.