You may have Copy Enchantment enter the battlefield as a copy of any enchantment on the battlefield.

You may have Estrid's Invocation enter the battlefield as a copy of an enchantment you control, except it has "At the beginning of your upkeep, you may exile this enchantment. If you do, return it to the battlefield under its owner's control."

You may have Mirrormade enter the battlefield as a copy of any artifact or enchantment on the battlefield.

Cumulative upkeep {1} (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.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Skip your draw step. Whenever you discard a card, exile that card from your graveyard. Pay 1 life: Exile the top card of your library face down. Put that card into your hand at the beginning of your next end step.

At the beginning of your upkeep, you draw a card and you lose 1 life.

{T}: Add {C}. {T}: Add {W} or {U}. Adarkar Wastes deals 1 damage to you.

Arcane Sanctum enters the battlefield tapped. {T}: Add {W}, {U}, or {B}.

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

{T}: Add {C}. {T}: Add {W} or {B}. Caves of Koilos deals 1 damage to you.

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

Deserted Beach enters the battlefield tapped unless you control two or more other lands. {T}: Add {W} or {U}.

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

{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 {W} or {B}.) As Godless Shrine enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}: Add {C}. {1}{W}, {T}: Put target enchantment card from your graveyard on top of your library.

({T}: Add {W} or {U}.) As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {U}.)

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Morphic Pool enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {B}.

({T}: Add {W}.)

You have no maximum hand size. {T}: Add {C}.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

Sea of Clouds enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {U}.

Shattered Sanctum enters the battlefield tapped unless you control two or more other lands. {T}: Add {W} or {B}.

Shipwreck Marsh enters the battlefield tapped unless you control two or more other lands. {T}: Add {U} or {B}.

({T}: Add {B}.)

{T}: Add {C}. {T}: Add {U} or {B}. Underground River deals 1 damage to you.

Vault of Champions enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {B}.

Enchant creature Shroud (A permanent with shroud can't be the target of spells or abilities.) Enchanted creature has shroud.

During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments.

Other enchantments you control have shroud. (A permanent with shroud can't be the target of spells or abilities.) Enchanted creatures you control have shroud.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

Enchant creature Enchanted creature has indestructible. Whenever a creature enters the battlefield, you may attach Shielded by Faith to that creature.

At the beginning of your upkeep, sacrifice Solitary Confinement unless you discard a card. Skip your draw step. You have shroud. (You can't be the target of spells or abilities.) Prevent all damage that would be dealt to you.

Enchant creature {U}{U}: Enchanted creature phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)

Enchant creature Enchanted creature gets +1/+1 for each artifact and/or enchantment you control.

Enchant creature Enchanted creature has double strike. (It deals both first-strike and regular combat damage.)

Enchant creature with another Aura attached to it Enchanted creature gets +3/+3 and has first strike, vigilance, and lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)

Enchant creature Enchanted creature gets +1/+1 for each enchantment you control and has first strike.

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

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

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

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

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

Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

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

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

{T}: Add {C}. {T}: Add {W} or {B}. Talisman of Hierarchy deals 1 damage to you.

Counter target spell.

({B/P} can be paid with either {B} or 2 life.) Target creature gets -5/-5 until end of turn.

Each player chooses a creature they control. Destroy the rest. Flashback {5}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

This spell can't be countered. Counter target noncreature spell.

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

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

When Grasp of Fate enters the battlefield, for each opponent, exile up to one target nonland permanent that player controls until Grasp of Fate leaves the battlefield. (Those permanents return under their owners' control.)

Enchant creature, land, or planeswalker Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

Counter target spell unless its controller pays {3}.

Counter target noncreature spell.

When Oubliette enters the battlefield, target creature phases out until Oubliette leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)

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

Counter target noncreature spell. Your opponents can't cast noncreature spells this turn.

Enchant creature Enchanted creature can't attack or block, and its activated abilities can't be activated. Whenever a creature enters the battlefield under an opponent's control, you may attach Prison Term to that creature.

Destroy target nonland permanent. Its controller creates a 1/1 white Human creature token.

This spell can't be countered. Destroy all creatures.

Spells and abilities your opponents control can't cause their controller to search their library. −1: Target player mills four cards. Then exile each opponent's graveyard.

Artifact and enchantment spells your opponents cast cost {2} more to cast. Sacrifice Aura of Silence: Destroy target artifact or enchantment.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Artifacts and creatures your opponents control enter the battlefield tapped.

Activated abilities of creatures can't be activated.

Artifact, instant, and sorcery spells your opponents cast cost {1} more to cast. −1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls.

Artifacts, creatures, and lands your opponents control enter the battlefield tapped.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

White spells you cast cost {1} less to cast. Blue spells you cast cost {1} less to cast. Spells your opponents cast cost {1} more to cast.

As Nevermore enters the battlefield, choose a nonland card name. Spells with the chosen name can't be cast.

Flash You control your opponents while they're searching their libraries. While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

When Rest in Peace enters the battlefield, exile all graveyards. If a card or token would be put into a graveyard from anywhere, exile it instead.

Each player can't cast more than one spell each turn.

No more than one creature can attack each combat. No more than one creature can block each combat.

Each player can't draw more than one card each turn.