When Akki Blizzard-Herder dies, each player sacrifices a land.

Whenever a land enters the battlefield, Ankh of Mishra deals 2 damage to that land's controller.

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

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

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

Blasphemous Act deals 13 damage to each creature.

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

{T}: Add one mana of any color.

{4}, {T}: Each player who controls a permanent named Bonder's Ornament draws a card.

Whenever a player taps a nonbasic land for mana, Burning Earth deals 1 damage to that player.

Indestructible

{T}: Add {C}.

{5}, {T}: Add five mana in any combination of colors.

As an additional cost to cast this spell, discard two cards.

Draw three cards.

First strike

When Cemetery Gatekeeper enters the battlefield, exile a card from a graveyard.

Whenever a player plays a land or casts a spell, if it shares a card type with the exiled card, Cemetery Gatekeeper deals 2 damage to that player.

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.

Equipped creature gets +3/+3 and has protection from each color that's not in your commander's color identity.

Equip commander {3}

Equip {5}

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

Sacrifice Commander's Sphere: Draw a card.

No more than two creatures can attack you each combat.

You may play lands from your graveyard.

Enchant player

Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this artifact: Add one mana of any color.")

{T}: Add {R}.

As Cursed Mirror enters the battlefield, you may have it become a copy of any creature on the battlefield until end of turn, except it has haste.

Indestructible

{T}: Add {C}.

Indestructible

{T}: Add one mana of any color.

If you control a commander, you may cast this spell without paying its mana cost.

You may choose new targets for target spell or ability.

Whenever a land is put into a graveyard from the battlefield, Dingus Egg deals 2 damage to that land's controller.

When Dockside Extortionist enters the battlefield, create X Treasure tokens, where X is the number of artifacts and enchantments your opponents control. (Treasure tokens are artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}: Add {C}.

{3}, {T}, Sacrifice a land: Destroy target nonbasic land.

{2}{R}, {T}: Destroy target nonbasic land.

Whenever a player casts a spell with mana value 3 or less, Eidolon of the Great Revel deals 2 damage to that player.

Target player sacrifices a land.

Threshold -- Each player sacrifices all lands they control instead if seven or more cards are in your graveyard.

Draw two cards, then discard two cards.

Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}: Add {C}.

{2}, {T}, Sacrifice Field of Ruin: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.

If a source you control would deal damage to a permanent or player, it deals triple that damage to that permanent or player instead.

Destroy all nonbasic lands. For each land destroyed this way, its controller may search their library for a basic land card and put it onto the battlefield. Then each player who searched their library this way shuffles.

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Search your library for a card, put that card into your hand, discard a card at random, then shuffle.

{T}: Add {C}.

{T}, Sacrifice Ghost Quarter: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

{T}: Add three mana of any one color.

{T}: Add {R}. Put a stash counter on Glittering Stockpile.

{T}, Sacrifice Glittering Stockpile: Add X mana of any one color, where X is the number of stash counters on Glittering Stockpile.

When Goblin Engineer enters the battlefield, you may search your library for an artifact card, put it into your graveyard, then shuffle.

{R}, {T}, Sacrifice an artifact: Return target artifact card with mana value 3 or less from your graveyard to the battlefield.

{T}: Choose target artifact a player controls and target artifact card in that player's graveyard. If both targets are still legal as this ability resolves, that player simultaneously sacrifices the artifact and returns the artifact card to the battlefield.

Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, Harsh Mentor deals 2 damage to that player.

{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.

Flying, trample

Whenever Hellkite Tyrant deals combat damage to a player, gain control of all artifacts that player controls.

At the beginning of your upkeep, if you control twenty or more artifacts, you win the game.

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

When Hurloon Shaman dies, each player sacrifices a land.

At the beginning of your upkeep, if there are seven or more lands on the battlefield, sacrifice Impending Disaster and destroy all lands.

Choose one. If you control a commander as you cast this spell, you may choose both instead.

• Add {R} for each card in target opponent's hand.

• Exile the top three cards of your library. You may play them this turn.

When Keldon Firebombers enters the battlefield, each player sacrifices all lands they control except for three.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)

Equip {0}

{T}: Add {C}.

{T}: Target nonland permanent becomes an artifact in addition to its other types until end of turn.

{1}{R}, {T}, Sacrifice Magus of the Wheel: Each player discards their hand, then draws seven cards.

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

{T}: Add {C}.

{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

As an additional cost to cast this spell, discard a card.

Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Whenever a player taps a land for mana, if it's not that player's turn, destroy that land.

Choose one --

• Counter target spell if it's blue.

• Destroy target permanent if it's blue.

Whenever Ragavan, Nimble Pilferer deals combat damage to a player, create a Treasure token and exile the top card of that player's library. Until end of turn, you may cast that card.

Dash {1}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Choose one --

• Counter target blue spell.

• Destroy target blue permanent.

{T}: Add one mana of any color.

At the beginning of your upkeep, put a night counter on Replicating Ring. Then if it has eight or more night counters on it, remove all of them and create eight colorless snow artifact tokens named Replicated Ring with "{T}: Add one mana of any color."

At the beginning of each player's upkeep, Roiling Vortex deals 1 damage to them.

Whenever a player casts a spell, if no mana was spent to cast that spell, Roiling Vortex deals 5 damage to that player.

{R}: Your opponents can't gain life this turn.

Red spells you cast cost {1} less to cast.

Destroy all nonbasic lands.

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

{T}: Add one mana of any color.

{T}: Add three mana of any one color. Activate only if you control three or more lands with the same name.

Kicker {3}

Indestructible

When Skyclave Relic enters the battlefield, if it was kicked, create two tapped tokens that are copies of Skyclave Relic.

{T}: Add one mana of any color.

Players can't untap more than one creature during their untap steps.

{T}: Add {C}{C}.

Whenever a player casts a spell, Spellshock deals 2 damage to that player.

At the beginning of each player's end step, that player sacrifices an untapped land.

Each player may play an additional land during each of their turns.

Whenever a land is tapped for mana, return it to its owner's hand.

{T}: Add {C}.

{T}, Sacrifice Strip Mine: Destroy target land.

At the beginning of each player's upkeep, Sulfuric Vortex deals 2 damage to that player.

If a player would gain life, that player gains no life instead.

Each player sacrifices X lands.

Each player sacrifices a land for each card in your hand.

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

Whenever an opponent taps an artifact for mana, gain control of that artifact until the end of your next turn.

Whenever a land enters the battlefield under an opponent's control, if that player had another land enter the battlefield under their control this turn, Tunnel Ignus deals 3 damage to that player.

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

I -- Urza's Saga gains "{T}: Add {C}."

II -- Urza's Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control.'"

III -- Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.

Valakut, the Molten Pinnacle enters the battlefield tapped.

Whenever a Mountain enters the battlefield under your control, if you control at least five other Mountains, you may have Valakut, the Molten Pinnacle deal 3 damage to any target.

{T}: Add {R}.

Destroy target artifact you don't control.

Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

{1}{R}, {T}: Destroy target artifact. Viashino Heretic deals damage to that artifact's controller equal to the artifact's mana value.

{T}: Add {C}.

{3}, {T}, Pay life equal to the number of colors in your commanders' color identity: Draw a card.

{T}: Add {C}.

{T}, Sacrifice Wasteland: Destroy target nonbasic land.

Each player secretly chooses a number 0 or greater, then all players reveal those numbers simultaneously and determine the highest and lowest numbers revealed this way. Wheel of Misfortune deals damage equal to the highest number to each player who chose that number. Each player who didn't choose the lowest number discards their hand, then draws seven cards.

Each player sacrifices four lands. Wildfire deals 4 damage to each creature.

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

Whenever a land enters the battlefield, Zo-Zu the Punisher deals 2 damage to that land's controller.