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

Landfall -- Whenever a land enters the battlefield under your control, you may draw a card.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

Exile target nonland permanent. You lose 3 life.

Reveal the top X cards of your library. Put all land cards from among them onto the battlefield tapped and the rest on the bottom of your library in a random order.

Spell mastery -- If there are two or more instant and/or sorcery cards in your graveyard, untap those lands.

Cascade, cascade, cascade, cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order. Multiple instances of cascade each trigger separately.)

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

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

Azorius Guildgate enters the battlefield tapped.

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

{T}: Add {C}.

{2}, {T}: Add X mana of any one color, where X is the number of other Gates you control.

{T}: Add {C}.

{2}, {T}: Target creature gets +X/+X until end of turn, where X is the number of Gates you control. Activate only as a sorcery.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Black Dragon Gate enters the battlefield tapped.

As Black Dragon Gate enters the battlefield, choose a color other than black.

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

This spell costs {1} less to cast for each creature that died this turn.

Discard your hand, then draw eight cards. Blood for the Blood God! deals 8 damage to each opponent. Exile Blood for the Blood God!

Boros Guildgate enters the battlefield tapped.

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

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.

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.

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

Citadel Gate enters the battlefield tapped.

As Citadel Gate enters the battlefield, choose a color other than white.

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

Cliffgate enters the battlefield tapped.

As Cliffgate enters the battlefield, choose a color other than red.

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

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

Tap an untapped Gate you control: Crackling Perimeter deals 1 damage to each opponent.

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.

Dimir Guildgate enters the battlefield tapped.

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

When District Guide enters the battlefield, you may search your library for a basic land card or Gate card, reveal it, put it into your hand, then shuffle.

(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.

Target player draws X cards and loses X life, where X is the number of cards in their graveyard.

Flying

Landfall -- Whenever a land enters the battlefield under your control, you may create a 1/1 white Bird creature token with flying.

Draw two cards. You may put a land card from your hand onto the battlefield.

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

You may play an additional land this turn.

Draw a card.

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

You take the initiative.

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

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

({T}: Add {G}.)

Gatebreaker Ram gets +1/+1 for each Gate you control.

As long as you control two or more Gates, Gatebreaker Ram has vigilance and trample.

Defender

When Gatecreeper Vine enters the battlefield, you may search your library for a basic land card or a Gate card, reveal it, put it into your hand, then shuffle.

Gates Ablaze deals X damage to each creature, where X is the number of Gates you control.

Gateway Plaza enters the battlefield tapped.

When Gateway Plaza enters the battlefield, sacrifice it unless you pay {1}.

{T}: Add one mana of any color.

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Look at the top five cards of your library. Put any number of permanent cards from among them onto the battlefield and the rest into your hand. Exile Genesis Ultimatum.

Equipped creature gets +1/+0 for each Gate you control and has vigilance and menace. (A creature with menace can't be blocked except by two or more creatures.)

Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Golgari Guildgate enters the battlefield tapped.

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

Gates you control enter the battlefield untapped.

{T}: Add {C}.

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

Protection from planeswalkers and from Wizards

Greensleeves, Maro-Sorcerer's power and toughness are each equal to the number of lands you control.

Landfall -- Whenever a land enters the battlefield under your control, create a 3/3 green Badger creature token.

Draw a card. You may put a land card from your hand onto the battlefield.

Gruul Guildgate enters the battlefield tapped.

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

When Guild Summit enters the battlefield, you may tap any number of untapped Gates you control. Draw a card for each Gate tapped this way.

Whenever a Gate enters the battlefield under your control, draw a card.

{T}: Add {C}.

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

{1}, {T}, Tap an untapped Gate you control: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Destroy all creatures you don't control and all planeswalkers you don't control.

({T}: Add {W}, {B}, or {G}.)

Indatha Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

({T}: Add {U}.)

Izzet Guildgate enters the battlefield tapped.

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

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

Jetmir's Garden enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

Flying

You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells that you cast.

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

Ketria Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

Manor Gate enters the battlefield tapped.

As Manor Gate enters the battlefield, choose a color other than green.

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

Maze's End enters the battlefield tapped.

{T}: Add {C}.

{3}, {T}, Return Maze's End to its owner's hand: Search your library for a Gate card, put it onto the battlefield, then shuffle. If you control ten or more Gates with different names, you win the game.

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

({T}: Add {R}.)

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

{2}, {T}, Sacrifice Navigation Orb: Search your library for up to two basic land cards and/or Gate cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Menace

Ward--Pay 9 life.

Whenever Nine-Fingers Keene deals combat damage to a player, look at the top nine cards of your library. You may put a Gate card from among them onto the battlefield. Then if you control nine or more Gates, put the rest into your hand. Otherwise, put the rest on the bottom of your library in a random order.

Choose one --

• Search your library for up to X land cards, reveal them, put them into your hand, then shuffle.

• Nylea's Intervention deals twice X damage to each creature with flying.

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.

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

Orzhov Guildgate enters the battlefield tapped.

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

({T}: Add {W}.)

Rakdos Guildgate enters the battlefield tapped.

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

Trample

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

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

Raugrin Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

Scry 2, then draw two cards. You lose 2 life.

Choose one --

• Destroy target land.

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

Entwine {1}{G} (Choose both if you pay the entwine cost.)

Destroy all nonland permanents your opponents control.

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

Savai Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)

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

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.

Sea Gate enters the battlefield tapped.

As Sea Gate enters the battlefield, choose a color other than blue.

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

Landfall -- Whenever a land enters the battlefield under your control, you may pay {2}. If you do, draw a card.

Selesnya Guildgate enters the battlefield tapped.

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

Simic Guildgate enters the battlefield tapped.

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

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.

You gain X life and draw X cards.

({T}: Add {B}.)

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

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

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

As The Black Gate enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.

{T}: Add {B}.

{1}{B}, {T}: Choose a player with the most life or tied for most life. Target creature can't be blocked by creatures that player controls this turn.

{T}: Add {C}.

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

Thran Portal enters the battlefield tapped unless you control two or fewer other lands.

As Thran Portal enters the battlefield, choose a basic land type.

Thran Portal is the chosen type in addition to its other types.

Mana abilities of Thran Portal cost an additional 1 life to activate.

Whenever a land enters the battlefield tapped and under your control, choose one --

• Untap that land.

• Tap target nonland permanent an opponent controls.

Landfall -- Whenever a land enters the battlefield under your control, create a Food token or a Treasure token. (Food is an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life." Treasure is an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Landfall -- Whenever a land enters the battlefield under your control, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Whenever you sacrifice a Clue, put a +1/+1 counter on Tireless Tracker.

Choose two --

• Exile target player's graveyard. You gain 1 life for each card exiled this way.

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

• Create two 2/2 green Bear creature tokens.

• Put two +1/+1 counters on each creature you control.

Reach

Ulvenwald Hydra's power and toughness are each equal to the number of lands you control.

When Ulvenwald Hydra enters the battlefield, you may search your library for a land card, put it onto the battlefield tapped, then shuffle.

Draw three cards. You may play an additional land this turn.

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

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

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

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

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

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

Zagoth Triome enters the battlefield tapped.

Cycling {3} ({3}, Discard this card: Draw a card.)