Cumulative upkeep—Pay 2 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When Glacial Chasm enters the battlefield, sacrifice a land. Creatures you control can't attack. Prevent all damage that would be dealt to you.

At the beginning of your end step, you may sacrifice an artifact, creature, enchantment, land, or planeswalker. If you do, each opponent may sacrifice a permanent that shares a card type with it. For each opponent who doesn't, that player loses 2 life and you draw a card.

Return up to three target land cards from your graveyard to your hand. Dredge 3 (If you would draw a card, you may mill three cards instead. If you do, return this card from your graveyard to your hand.)

Deathtouch At the beginning of your upkeep, sacrifice The Gitrog Monster unless you sacrifice a land. You may play an additional land on each of your turns. Whenever one or more land cards are put into your graveyard from anywhere, draw a card.

Landfall — Whenever a land enters the battlefield under your control, exile the top card of your library. You may play that card for as long as it remains exiled. At the beginning of your end step, if there are cards exiled with Valakut Exploration, put them into their owner's graveyard, then Valakut Exploration deals that much damage to each opponent.

+2: You may sacrifice another permanent. If you do, you gain 1 life and draw a card. −3: Destroy target nonland permanent with mana value 3 or less. −9: You get an emblem with "Whenever a creature you control deals combat damage to a player, that player loses the game."

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

Buyback—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Prevent all combat damage that would be dealt this turn.

Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

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.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Destroy target artifact or enchantment.

Whenever a player sacrifices a permanent, Mayhem Devil deals 1 damage to any target.

Choose one — • Counter target spell if it's blue. • Destroy target permanent if it's blue.

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

({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.

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

{T}: Add {G}. Channel — {1}{G}, Discard Boseiju, Who Endures: Destroy target artifact, enchantment, or nonbasic land an opponent controls. That player may search their library for a land card with a basic land type, put it onto the battlefield, then shuffle. This ability costs {1} less to activate for each legendary creature you control.

({T}: Add {B} or {R}.) Canyon Slough enters the battlefield tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {R} or {G}.) Cinder Glade enters the battlefield tapped unless you control two or more basic lands.

({T}: Add {R} or {G}.) Commercial District enters the battlefield tapped. When Commercial District enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

You may have Echoing Deeps enter the battlefield tapped as a copy of any land card in a graveyard, except it's a Cave in addition to its other types. {T}: Add {C}.

{T}, Sacrifice Fabled Passage: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.

Field of the Dead enters the battlefield tapped. {T}: Add {C}. Whenever Field of the Dead or another land enters the battlefield under your control, if you control seven or more lands with different names, create a 2/2 black Zombie creature token.

({T}: Add {G}.)

({T}: Add {B} or {R}.) Geothermal Bog enters the battlefield tapped.

Hidden Volcano enters the battlefield tapped. {T}: Add {R}. {4}{R}, {T}, Sacrifice Hidden Volcano: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

({T}: Add {R} or {G}.) Highland Forest enters the battlefield tapped.

If Lake of the Dead would enter the battlefield, sacrifice a Swamp instead. If you do, put Lake of the Dead onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add {B}. {T}, Sacrifice a Swamp: Add {B}{B}{B}{B}.

Memorial to Folly enters the battlefield tapped. {T}: Add {B}. {2}{B}, {T}, Sacrifice Memorial to Folly: Return target creature card from your graveyard to your hand.

({T}: Add {R}.)

({T}: Add {B} or {G}.) As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {B} or {R}.) Raucous Theater enters the battlefield tapped. When Raucous Theater enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Savage Lands enters the battlefield tapped. {T}: Add {B}, {R}, or {G}.

({T}: Add {R} or {G}.) Sheltered Thicket enters the battlefield tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {B} or {R}.) Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands.

({T}: Add {R} or {G}.) As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

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

({T}: Add {B} or {R}.) Sulfurous Mire enters the battlefield tapped.

({T}: Add {B}.)

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

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

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

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

({T}: Add {R} or {G}.) Wooded Ridgeline enters the battlefield tapped.

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

You may play two additional lands on each of your turns.

You may play an additional land on each of your turns. Lands you control are every basic land type in addition to their other types.

You may play an additional land on each of your turns.

You may play an additional land on each of your turns. {R}{G}, Return a land you control to its owner's hand: Target creature gains trample until end of turn.

Whenever a permanent enters the battlefield tapped and under your control, untap it.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) {T}: Add {B}, {R}, or {G}.

Landfall — Whenever a land enters the battlefield under your control, add one mana of any color.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

{T}, Sacrifice a Forest: Add three mana in any combination of {R} and/or {G}.

When Spelunking enters the battlefield, draw a card, then you may put a land card from your hand onto the battlefield. If you put a Cave onto the battlefield this way, you gain 4 life. Lands you control enter the battlefield untapped.

Sacrifice a land: Add one mana of any type the sacrificed land could produce.

Choose one — • Search your library for a creature or land card and reveal it. Put it onto the battlefield tapped if it's a land card. Otherwise, put it into your hand. Then shuffle. • Put a +1/+1 counter on target creature you control. It deals damage equal to its power to target creature you don't control. • Exile target artifact or enchantment.

As an additional cost to cast this spell, sacrifice a land. Search your library for a land card, put that card onto the battlefield, then shuffle.

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

Elvish Reclaimer gets +2/+2 as long as there are three or more land cards in your graveyard. {2}, {T}, Sacrifice a land: Search your library for a land card, put it onto the battlefield tapped, then shuffle.

Whenever a Swamp enters the battlefield under your control, choose one — • You draw a card and you lose 1 life. • Dread Presence deals 2 damage to any target and you gain 2 life.

{2}: Mirage Mirror becomes a copy of target artifact, creature, enchantment, or land until end of turn.

Landfall — Whenever a land enters the battlefield under your control, you may have target player lose 3 life. If you do, put three +1/+1 counters on Ob Nixilis, the Fallen.

Choose target land. Create three tokens that are copies of it, except they're 3/3 creatures in addition to their other types and they have vigilance and menace. (They're affected by summoning sickness.)

{T}: Add {C}. {2}, {T}: Thespian's Stage becomes a copy of target land, except it has this ability.

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}.

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Destroy all creatures. They can't be regenerated.

{X}, Sacrifice Pernicious Deed: Destroy each artifact, creature, and enchantment with mana value X or less.

Reach You may play lands from your graveyard. If a land entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

You may play lands from your graveyard.

Deathtouch Whenever Erinis, Gloom Stalker attacks, return target land card from your graveyard to the battlefield. Choose a Background (You can have a Background as a second commander.)

You may play lands from your graveyard.

Whenever Soul of Windgrace enters the battlefield or attacks, you may put a land card from a graveyard onto the battlefield tapped under your control. {G}, Discard a land card: You gain 3 life. {1}{R}, Discard a land card: Draw a card. {2}{B}, Discard a land card: Soul of Windgrace gains indestructible until end of turn. Tap it.

Return all land cards from your graveyard to the battlefield tapped.

Whenever World Shaper attacks, you may mill three cards. When World Shaper dies, return all land cards from your graveyard to the battlefield tapped.

When Darigaaz's Caldera enters the battlefield, sacrifice it unless you return a non-Lair land you control to its owner's hand. {T}: Add {B}, {R}, or {G}.

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.