Draw cards equal to the number of cards in your hand, then discard a card for each card drawn this way.

Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

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

Creatures you control have flying.

Creatures your opponents control lose flying and can't have or gain flying.

Flying

{T}: Add one mana of any color.

{T}: Add {C}.

{3}{G}, {T}, Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

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

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

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Trample

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token that's a copy of this creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Castle Garenbrig enters the battlefield tapped unless you control a Forest.

{T}: Add {G}.

{2}{G}{G}, {T}: Add six {G}. Spend this mana only to cast creature spells or activate abilities of creatures.

Hideaway 5 (When this enchantment enters the battlefield, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.)

At the beginning of your upkeep, you may mill three cards. Then if there are twenty or more cards in your graveyard, you may play the exiled card without paying its mana cost.

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

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

Sacrifice Commander's Sphere: Draw a card.

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Draw a card.

When Court of Cunning enters the battlefield, you become the monarch.

At the beginning of your upkeep, any number of target players each mill two cards. If you're the monarch, each of those players mills ten cards instead. (To mill a card, a player puts the top card of their library into their graveyard.)

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Draw a card.

Deathcap Glade enters the battlefield tapped unless you control two or more other lands.

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

Dreamroot Cascade enters the battlefield tapped unless you control two or more other lands.

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

Return target card from your graveyard to your hand.

Flashback {4}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

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

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

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

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

Mill three cards. Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

---

Each opponent mills three cards, then you may cast a spell from each opponent's graveyard without paying its mana cost. If a spell cast this way would be put into a graveyard, exile it instead.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Trample

Whenever Giant Adephage deals combat damage to a player, create a token that's a copy of Giant Adephage.

Golgari Rot Farm enters tapped.

When Golgari Rot Farm enters, return a land you control to its owner's hand.

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

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

Mill three cards, then you may return a creature or land card from your graveyard to your hand.

Reveal the top five cards of your library. You may put a creature or land card from among them into your hand. Put the rest into your graveyard.

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

Hedge Maze enters the battlefield tapped.

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

Hinterland Harbor enters tapped unless you control a Forest or an Island.

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

Whenever Hydra Omnivore deals combat damage to an opponent, it deals that much damage to each other opponent.

Destroy target creature. You lose 2 life.

Trample

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Shroud (This creature can't be the target of spells or abilities.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Flying

When Jace's Mindseeker enters the battlefield, target opponent mills five cards. You may cast an instant or sorcery spell from among them without paying its mana cost.

Trample

Jokulmorder enters the battlefield tapped.

When Jokulmorder enters the battlefield, sacrifice it unless you sacrifice five lands.

Jokulmorder doesn't untap during your untap step.

Whenever you play an Island, you may untap Jokulmorder.

Trample

Shroud (This creature can't be the target of spells or abilities.)

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

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

When you cycle Krosan Tusker, you may search your library for a basic land card, reveal that card, put it into your hand, then shuffle. (Do this before you draw.)

Destroy all creatures, then search target opponent's library for up to three creature cards and put them into their graveyard. Then that player shuffles.

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

Equip {0}

Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)

Islandcycling {2} ({2}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

When Massacre Wurm enters the battlefield, creatures your opponents control get -2/-2 until end of turn.

Whenever a creature an opponent controls dies, that player loses 2 life.

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

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

If Mossbridge Troll would be destroyed, regenerate it.

Tap any number of untapped creatures you control other than Mossbridge Troll with total power 10 or greater: Mossbridge Troll gets +20/+20 until end of turn.

Reach

At the beginning of your upkeep, mill two cards.

{1}{B}{G}, Exile Nyx Weaver: Return target card from your graveyard to your hand.

Opulent Palace enters the battlefield tapped.

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

Flying

{T}: Add one mana of any color.

Surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

({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.

Paradise Druid has hexproof as long as it's untapped. (It can't be the target of spells or abilities your opponents control.)

{T}: Add one mana of any color.

{T}: Mill two cards.

{2}, Exile Perpetual Timepiece: Shuffle any number of target cards from your graveyard into your library.

Prototype {1}{B}{B} -- 3/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

Menace, lifelink

Ward--Pay life equal to Phyrexian Fleshgorger's power.

Enrage -- Whenever Polyraptor is dealt damage, create a token that's a copy of Polyraptor.

Destroy target artifact or creature. It can't be regenerated.

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

Rejuvenating Springs enters the battlefield tapped unless you have two or more opponents.

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

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token that's a copy of this creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Whenever Scion of Calamity deals combat damage to a player, destroy target artifact or enchantment that player controls.

Join forces -- Starting with you, each player may pay any amount of mana. Each player mills X cards, where X is the total amount of mana paid this way.

Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands.

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

At the beginning of combat on your turn, mill a card. When you do, if there are four or more creature cards in your graveyard, put a +1/+1 counter on target creature you control and it gains deathtouch until end of turn. (To mill a card, put the top card of your library into your graveyard.)

Simic Growth Chamber enters the battlefield tapped.

When Simic Growth Chamber enters the battlefield, return a land you control to its owner's hand.

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

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

Flying, trample

Shroud (This creature can't be the target of spells or abilities.)

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

{T}: Mill two cards.

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

Trample

Whenever Spawnwrithe deals combat damage to a player, create a token that's a copy of Spawnwrithe.

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

When Stitcher's Supplier enters or dies, mill three cards. (Put the top three cards of your library into your graveyard.)

At the beginning of your upkeep, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

{T}: Add {C}.

{T}: Add {U} or {B}. Talisman of Dominance deals 1 damage to you.

{T}: Add {C}{C}. Activate only if you control five or more lands.

When Terastodon enters, you may destroy up to three target noncreature permanents. For each permanent put into a graveyard this way, its controller creates a 3/3 green Elephant creature token.

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

As The Mimeoplasm enters the battlefield, you may exile two creature cards from graveyards. If you do, it enters the battlefield as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card.

Trample

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

When you cycle Titanoth Rex, put a trample counter on target creature you control.

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Exile a card from your graveyard: Add {C}. Spend this mana only to cast a spell that's one or more colors without {X} in its mana cost.

Troll of Khazad-dûm can't be blocked except by three or more creatures.

Swampcycling {1} ({1}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

{T}: Add {C}.

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

This spell can't be countered.

Trample, ward {4}, haste

Toxic 4 (Players dealt combat damage by this creature also get four poison counters.)

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

Undercity Sewers enters the battlefield tapped.

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

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

Underground Mortuary enters the battlefield tapped.

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

Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents.

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

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

Kicker {U} and/or {B} (You may pay an additional {U} and/or {B} as you cast this spell.)

As Urborg Lhurgoyf enters the battlefield, mill three cards for each time it was kicked.

Urborg Lhurgoyf's power is equal to the number of creature cards in your graveyard and its toughness is equal to that number plus 1.

Woodland Cemetery enters tapped unless you control a Swamp or a Forest.

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

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

Zagoth Triome enters the battlefield tapped.

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