At the beginning of your upkeep, put a time counter on As Foretold.

Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast with mana value X or less, where X is the number of time counters on As Foretold.

Spells and abilities your opponents control can't cause their controller to search their library.

-1: Target player mills four cards. Then exile each opponent's graveyard.

Destroy target artifact, creature, or planeswalker.

This spell costs {1} less to cast for each creature on the battlefield.

Blasphemous Act deals 13 damage to each creature.

({T}: Add {B} or {R}.)

As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{2}, {T}: Add {B} for each Swamp you control.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Lands you control have "{T}: Add one mana of any color."

{T}: Add one mana of any color.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)

Choose a counter on target permanent or suspended card. Remove that counter from that permanent or card or put another of those counters on it.

{T}: Add one mana of any color in your commander's color identity.

Counter target spell.

Target opponent sacrifices a creature, discards three cards, then loses 5 life. You return a creature card from your graveyard to your hand, draw three cards, then gain 5 life.

Crumbling Necropolis enters the battlefield tapped.

{T}: Add {U}, {B}, or {R}.

+1: Target player draws two cards, then discards two cards.

-2: Gain control of target artifact.

-6: You get an emblem with "Whenever you cast a spell that targets one or more permanents, gain control of those permanents."

Each opponent sacrifices a creature or planeswalker, then discards a card. You return a creature or planeswalker card from your graveyard to your hand, then draw a card.

When you cast a Bolas planeswalker spell, exile Dark Intimations from your graveyard. That planeswalker enters the battlefield with an additional loyalty counter on it.

Choose up to four target cards in your graveyard. If you control a Bolas planeswalker, return those cards to your hand. Otherwise, an opponent chooses two of them. Leave the chosen cards in your graveyard and put the rest into your hand.

Exile Deliver Unto Evil.

{T}: Add {C}.

{1}{U}{R}, {T}: Draw a card, then discard a card.

{1}, {T}: Add {U}{B}.

Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain.

{T}: Add {B} or {R}.

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp.

{T}: Add {U} or {B}.

Creatures with power greater than the number of cards in your hand can't attack.

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Draw two cards, then discard two cards. Untap up to three lands.

All creatures lose indestructible until end of turn. Hour of Devastation deals 5 damage to each creature and each non-Bolas planeswalker.

Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever you cast a planeswalker spell, you gain 1 life.

{T}: Add {C}.

{1}, {T}: Add two mana of different colors. Spend this mana only to cast planeswalker spells.

({T}: Add {U}.)

{T}: Add {C}.

{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever a creature you control dies, draw a card.

+1: Create a 2/2 black Zombie creature token.

-4: Each player sacrifices two creatures.

-9: Each opponent chooses a permanent they control of each permanent type and sacrifices the rest.

Luxury Suite enters the battlefield tapped unless you have two or more opponents.

{T}: Add {B} or {R}.

Morphic Pool enters the battlefield tapped unless you have two or more opponents.

{T}: Add {U} or {B}.

({T}: Add {R}.)

Each opponent can't draw more than one card each turn.

-2: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Nicol Bolas, Dragon-God has all loyalty abilities of all other planeswalkers on the battlefield.

+1: You draw a card. Each opponent exiles a card from their hand or a permanent they control.

-3: Destroy target creature or planeswalker.

-8: Each opponent who doesn't control a legendary creature or planeswalker loses the game.

+2: Target opponent exiles cards from the top of their library until they exile a nonland card. Until end of turn, you may cast that card without paying its mana cost.

+1: Each opponent exiles two cards from their hand.

-4: Nicol Bolas, God-Pharaoh deals 7 damage to target opponent, creature an opponent controls, or planeswalker an opponent controls.

-12: Exile each nonland permanent your opponents control.

When Plaguecrafter enters the battlefield, each player sacrifices a creature or planeswalker. Each player who can't discards a card.

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

{1}, {T}: Add {B}{R}.

{T}: Add one mana of any type that a land you control could produce.

+2: During target player's next turn, each creature that player controls attacks if able.

-2: Rowan Kenrith deals 3 damage to each tapped creature target player controls.

-8: Target player gets an emblem with "Whenever you activate an ability that isn't a mana ability, copy it. You may choose new targets for the copy."

Partner with Will Kenrith

Rowan Kenrith can be your commander.

Whenever a creature attacks you or a planeswalker you control, each Dragon you control deals 1 damage to that creature.

+1: Until end of turn, each planeswalker you control becomes a 4/4 red Dragon creature and gains flying.

-3: Create a 4/4 red Dragon creature token with flying.

Exile target creature. Put two loyalty counters on a planeswalker you control.

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

({T}: Add {U} or {R}.)

As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.

{T}: Add {U} or {R}.

{T}: Add {C}.

{T}: Add {B} or {R}. Sulfurous Springs deals 1 damage to you.

({T}: Add {B}.)

{T}: Add {C}.

{T}: Add {B} or {R}. Talisman of Indulgence deals 1 damage to you.

Destroy any number of target planeswalkers. Choose a planeswalker you control. Put two loyalty counters on it for each planeswalker destroyed this way.

(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.

At the beginning of your upkeep, exile the top card of your library.

During your turn, if an opponent lost life this turn, you may play lands and cast spells from among cards exiled with Theater of Horrors.

{3}{R}: Theater of Horrors deals 1 damage to target opponent or planeswalker.

{T}: Add {C}.

{T}: Add {U} or {B}. Underground River deals 1 damage to you.

Each land is a Swamp in addition to its other land types.

Volt Charge deals 3 damage to any target. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

({T}: Add {U} or {B}.)

As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

+2: Until your next turn, up to two target creatures each have base power and toughness 0/3 and lose all abilities.

-2: Target player draws two cards. Until your next turn, instant, sorcery, and planeswalker spells that player casts cost {2} less to cast.

-8: Target player gets an emblem with "Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy."

Partner with Rowan Kenrith

Will Kenrith can be your commander.

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.