Abraded Bluffs enters the battlefield tapped.

When Abraded Bluffs enters the battlefield, it deals 1 damage to target opponent.

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

When Aftermath Analyst enters the battlefield, mill three cards.

{3}{G}, Sacrifice Aftermath Analyst: Return all land cards from your graveyard to the battlefield tapped.

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

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.

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

Argoth, Sanctum of Nature enters the battlefield tapped unless you control a legendary green creature.

{T}: Add {G}.

{2}{G}{G}, {T}: Create a 2/2 green Bear creature token, then mill three cards. Activate only as a sorcery.

(Melds with Titania, Voice of Gaea.)

Arid Archway enters the battlefield tapped.

When Arid Archway enters the battlefield, return a land you control to its owner's hand. If another Desert was returned this way, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

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

Sacrifice a land: Destroy target enchantment.

When Avenger of Zendikar enters the battlefield, create a 0/1 green Plant creature token for each land you control.

Landfall -- Whenever a land enters the battlefield under your control, you may put a +1/+1 counter on each Plant creature you control.

Discard a land card: Create a 2/2 green Bear creature token.

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

Bristling Backwoods enters the battlefield tapped.

When Bristling Backwoods enters the battlefield, it deals 1 damage to target opponent.

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

Landfall -- Whenever a land enters the battlefield under your control, put a +1/+1 counter on target creature.

{3}{G}{G}: Double the number of +1/+1 counters on each creature you control.

Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.

Cactus Preserve enters the battlefield tapped.

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

{3}: Until end of turn, Cactus Preserve becomes an X/X green Plant creature with reach, where X is the greatest mana value among your commanders. It's still a land.

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

To solve -- You control seven or more lands. (If unsolved, solve at the beginning of your end step.)

Solved -- You may look at the top card of your library any time, and you may play lands and cast creature and enchantment spells from the top of your library.

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

{T}: Add one mana of any color.

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

When Conduit Pylons enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

{T}: Add {C}.

{1}, {T}: Add one mana of any color.

You may play lands from your graveyard.

{T}: Choose target nonland permanent card in your graveyard. If you haven't cast a spell this turn, you may cast that card. If you do, you can't cast additional spells this turn. Activate only as a sorcery.

{T}: Add {C}.

{3}, {T}, Sacrifice Cradle of the Accursed: Create a 2/2 black Zombie creature token. Activate only as a sorcery.

Creosote Heath enters the battlefield tapped.

When Creosote Heath enters the battlefield, it deals 1 damage to target opponent.

{T}: Add {G} or {W}.

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.

You may play lands from your graveyard.

Spree (Choose one or more additional costs.)

+ {1} -- Search your library for a basic land card or a Desert card, put it onto the battlefield, then shuffle.

+ {3} -- Create an X/X green Elemental creature token, where X is the number of lands you control.

{T}: Add {C}.

{T}: Desert deals 1 damage to target attacking creature. Activate only during the end of combat step.

Desert of the Fervent enters the battlefield tapped.

{T}: Add {R}.

Cycling {1}{R} ({1}{R}, Discard this card: Draw a card.)

Desert of the Indomitable enters the battlefield tapped.

{T}: Add {G}.

Cycling {1}{G} ({1}{G}, Discard this card: Draw a card.)

Desert of the True enters the battlefield tapped.

{T}: Add {W}.

Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)

(Gain the next level as a sorcery to add its ability.)

Landfall -- Whenever a land enters the battlefield under your control, you gain 1 life.

{2}{G}: Level 2

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

{4}{G}: Level 3

When this Class becomes level 3, target land you control becomes a creature with haste and "This creature's power and toughness are each equal to the number of lands you control." It's still a land.

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.

Reach

Lands you control and land cards you own that aren't on the battlefield are Deserts in addition to their other types.

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

{T}: Mill two cards. You gain 1 life for each land card milled this way.

{T}: Add {C}.

When Dunes of the Dead is put into a graveyard from the battlefield, create a 2/2 black Zombie creature token.

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.

{T}: Add {C}.

{2}, {T}: Exile target creature you control.

{4}, {T}, Sacrifice Endless Sands: Return each creature card exiled with Endless Sands to the battlefield under its owner's control.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

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 {G}.)

({T}: Add {G}.)

{T}: Add {C}.

{1}, {T}, Sacrifice Grasping Dunes: Put a -1/-1 counter on target creature. Activate only as a sorcery.

As an additional cost to cast this spell, sacrifice a land.

Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

{T}: Add {C}.

{T}, Pay 1 life: Add {G}.

{1}{G}{G}, {T}, Sacrifice a Desert: Target creature gets +3/+3 until end of turn. Activate only as a sorcery.

Desertwalk (This creature can't be blocked as long as defending player controls a Desert.)

You may play Desert lands from your graveyard.

Whenever a Desert enters the battlefield under your control, create two 1/1 red, green, and white Sand Warrior creature tokens.

{T}: Add {C}.

{2}, Exile a land card from your graveyard: Hostile Desert becomes a 3/4 Elemental creature until end of turn. It's still a land.

Search your library for up to two land cards, put them onto the battlefield tapped, then shuffle. Then if you control three or more Deserts, create two 2/2 black Zombie creature tokens.

Other Plants and Treefolk you control get +2/+0.

At the beginning of your postcombat main phase, return target Plant, Treefolk, or land card from your graveyard to your hand.

Knight of the Reliquary gets +1/+1 for each land card in your graveyard.

{T}, Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle.

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.)

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

Hexproof

Lotus Field enters the battlefield tapped.

When Lotus Field enters the battlefield, sacrifice two lands.

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

Search your library for up to two basic land cards and/or Desert cards, put them onto the battlefield tapped, then shuffle.

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.

Mirage Mesa enters the battlefield tapped. As it enters, choose a color.

{T}: Add one mana of the chosen color.

Each creature you control gets +1/+0 for each time it has attacked this turn.

Landfall -- Whenever a land enters the battlefield under your control, if it's your main phase, there's an additional combat phase after this phase. At the beginning of that combat, untap all creatures you control.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Sacrifice a land: Target creature gains haste until end of turn.

Flying

Landfall -- Whenever a land enters the battlefield under your control, create a 0/2 red Dragon Egg creature token with defender and "When this creature dies, create a 2/2 red Dragon creature token with flying and '{R}: This creature gets +1/+0 until end of turn.'"

Landfall -- Whenever a land enters the battlefield under your control, add one mana of any color. Then if this is the second time this ability has resolved this turn, reveal cards from the top of your library until you reveal an Elf or Elemental card. Put that card into your hand and the rest on the bottom of your library in a random order.

Landfall -- Whenever a land enters the battlefield under your control, create a 5/5 red and green Elemental creature token.

Whenever Omnath, Locus of Rage or another Elemental you control dies, Omnath deals 3 damage to any target.

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

Play with the top card of your library revealed.

You may play lands from the top of your library.

When Outcaster Greenblade enters the battlefield, search your library for a basic land card or a Desert card, reveal it, put it into your hand, then shuffle.

Outcaster Greenblade gets +1/+1 for each Desert you control.

{T}: Add {C}.

{1}, {T}: Add one mana of any color.

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

You may play lands from your graveyard.

Unearth {G}{G} ({G}{G}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

When Phylath, World Sculptor enters the battlefield, create a 0/1 green Plant creature token for each basic land you control.

Landfall -- Whenever a land enters the battlefield under your control, put four +1/+1 counters on target Plant you control.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Trample

Landfall -- Whenever a land enters the battlefield under your control, you may create a 4/4 green Beast creature token.

You may play lands from your graveyard.

{T}: Add {C}.

{T}, Pay 1 life: Add {R}.

{2}{R}{R}, {T}, Sacrifice a Desert: Ramunap Ruins deals 2 damage to each opponent.

Search your library for up to four land cards with different names and reveal them. An opponent chooses two of those cards. Put the chosen cards into your graveyard and the rest into your hand. Then shuffle.

This spell costs {1} less to cast for each land card in your graveyard.

Vigilance, reach, trample

When Rumbleweed enters the battlefield, other creatures you control get +3/+3 and gain trample until end of turn.

When Sand Scout enters the battlefield, if an opponent controls more lands than you, search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

Whenever one or more land cards are put into your graveyard from anywhere, create a 1/1 red, green, and white Sand Warrior creature token. This ability triggers only once each turn.

{T}: Add {C}.

{3}, {T}: Target creature can't block this turn. Activate only as a sorcery.

{T}: Add {C}.

{2}, {T}, Sacrifice a Desert: Exile all graveyards.

Landfall -- Whenever a land enters the battlefield under your control, create a 1/1 green Insect creature token. If you control six or more lands, create a token that's a copy of Scute Swarm instead.

{T}: Add {C}.

{T}, Pay 1 life: Add {W}.

{2}{W}{W}, {T}, Sacrifice a Desert: Creatures you control get +1/+1 until end of turn. Activate only as a sorcery.

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

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.

When Springbloom Druid enters the battlefield, you may sacrifice a land. If you do, search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Vigilance

Whenever Sun Titan enters the battlefield or attacks, you may return target permanent card with mana value 3 or less from your graveyard to the battlefield.

When Sunscorched Desert enters the battlefield, it deals 1 damage to target player or planeswalker.

{T}: Add {C}.

{T}: Add {C}.

{T}, Tap an untapped creature you control: Add one mana of any color.

Exile target creature. Its controller gains life equal to its power.

Sacrifice a land: Target creature you control gains shroud until end of turn. (It can't be the target of spells or abilities.)

Each land card in your hand has cycling {R}.

Cycling {2} ({2}, Discard this card: Draw a card.)

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

When Titania, Protector of Argoth enters the battlefield, return target land card from your graveyard to the battlefield.

Whenever a land you control is put into a graveyard from the battlefield, create a 5/3 green Elemental creature token.

Reach

Whenever one or more land cards are put into your graveyard from anywhere, you gain 2 life.

At the beginning of your upkeep, if there are four or more land cards in your graveyard and you both own and control Titania, Voice of Gaea and a land named Argoth, Sanctum of Nature, exile them, then meld them into Titania, Gaea Incarnate.

Whenever one or more land cards are put into your graveyard from anywhere, create a 0/1 green Plant creature token.

{G}, Sacrifice three creatures: Return target land card from your graveyard to your hand.

(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.

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.

Whenever World Shaper attacks, you may mill three cards.

When World Shaper dies, return all land cards from your graveyard to the battlefield tapped.

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

+1: Up to one target land you control becomes a 3/3 Elemental creature with vigilance, hexproof, and haste until your next turn. It's still a land.

-2: Mill three cards. You may put a permanent card from among the milled cards into your hand.

-7: You get an emblem with "You may play lands and cast permanent spells from your graveyard."

This spell costs {1} less to cast for each land card in your graveyard.

Whenever Yuma, Proud Protector enters the battlefield or attacks, you may sacrifice a land. If you do, draw a card.

Whenever a Desert card is put into your graveyard from anywhere, create a 4/2 green Plant Warrior creature token with reach.

Sacrifice a land: You gain 2 life.