Flying Whenever an opponent casts a spell, put a +1/+1 counter on Ishai, Ojutai Dragonspeaker. Partner (You can have two commanders if both have partner.)

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.) When Ancestral Knowledge enters the battlefield, look at the top ten cards of your library, then exile any number of them and put the rest back on top of your library in any order. When Ancestral Knowledge leaves the battlefield, shuffle your library.

Flying Whenever an opponent draws a card, you may draw two cards.

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}.

This spell can't be countered. You have no maximum hand size. Whenever an opponent casts a noncreature spell, draw a card. Discard three cards: Exile Nezahal, Primal Tide. Return it to the battlefield tapped under its owner's control at the beginning of the next end step.

Enchant opponent Skip your draw step. Whenever enchanted opponent draws a card, you may draw a card.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

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

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

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

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

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

{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.

({T}: Add {U} or {B}.) Fetid Pools enters the battlefield tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

{T}, Pay 1 life: Add {U} or {R}. {1}, {T}, Sacrifice Fiery Islet: Draw a card.

Grand Coliseum enters the battlefield tapped. {T}: Add {C}. {T}: Add one mana of any color. Grand Coliseum deals 1 damage to you.

{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 {W} or {U}.) Irrigated Farmland enters the battlefield tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {U}.)

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

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

({T}: Add {R}.)

{T}: Add {C}. {W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.

Mystic Monastery enters the battlefield tapped. {T}: Add {U}, {R}, or {W}.

Path of Ancestry enters the battlefield tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

{T}, Pay 1 life, Sacrifice Prismatic Vista: Search your library for a basic land card, put it onto the battlefield, then shuffle.

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

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

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

{T}, Pay 1 life: Add {W} or {B}. {1}, {T}, Sacrifice Silent Clearing: Draw a card.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain. {T}: Add {U} or {R}.

{T}, Pay 1 life: Add {R} or {W}. {1}, {T}, Sacrifice Sunbaked Canyon: Draw a card.

({T}: Add {U} or {B}.) Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.

({T}: Add {B}.)

Players can't gain life. At the beginning of each player's upkeep, that player loses 1 life. Whenever Forsaken Wastes becomes the target of a spell, that spell's controller loses 5 life.

Players can't gain life. At the beginning of each player's upkeep, that player loses half their life, rounded up.

When Kardur, Doomscourge enters the battlefield, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able. Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Indestructible As long as your devotion to black and red is less than seven, Mogis isn't a creature. At the beginning of each opponent's upkeep, Mogis deals 2 damage to that player unless they sacrifice a creature.

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

At the beginning of each player's upkeep, Roiling Vortex deals 1 damage to them. Whenever a player casts a spell, if no mana was spent to cast that spell, Roiling Vortex deals 5 damage to that player. {R}: Your opponents can't gain life this turn.

At the beginning of your upkeep, you may put a soot counter on Smokestack. At the beginning of each player's upkeep, that player sacrifices a permanent for each soot counter on Smokestack.

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

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 that a land an opponent controls could produce.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}.

Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") At the beginning of your upkeep, if you control ten or more Treasures, you win the game.

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}.

When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When Solemn Simulacrum dies, you may draw a card.

Choose one or more — • Exile all artifacts. • Exile all creatures. • Exile all enchantments. • Exile all graveyards.

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost. Counter target spell.

You may exile a blue card from your hand rather than pay this spell's mana cost. Change the target of target spell with a single target.

Counter target spell. At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.

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

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

All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay {1}."

When Out of Time enters the battlefield, untap all creatures, then those creatures phase out until Out of Time leaves the battlefield. Put a time counter on Out of Time for each creature that phased out this way. Vanishing (At the beginning of your upkeep, remove a time counter from this enchantment. When the last is removed, sacrifice it.)

All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay {1}."

At the beginning of each player's upkeep, that player puts a flood counter on target non-Island land they control of their choice. That land is an Island for as long as it has a flood counter on it. At the beginning of each end step, if all lands on the battlefield are Islands, remove all flood counters from them.

When Reflector Mage enters the battlefield, return target creature an opponent controls to its owner's hand. That creature's owner can't cast spells with the same name as that creature until your next turn.

Players skip their untap steps. At the beginning of your upkeep, sacrifice Stasis unless you pay {U}.

Fading 4 (This artifact enters the battlefield with four fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.) At the beginning of each player's upkeep, that player taps an untapped artifact, creature, or land they control for each fade counter on Tangle Wire.

First strike Creatures and nonbasic lands your opponents control enter the battlefield tapped.

Until your next turn, creatures can't attack you. Exile Chronomantic Escape with three time counters on it. Suspend 3—{2}{W} (Rather than cast this card from your hand, you may pay {2}{W} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

If damage would be dealt to you, put that many delay counters on Delaying Shield instead. At the beginning of your upkeep, remove all delay counters from Delaying Shield. For each delay counter removed this way, you lose 1 life unless you pay {1}{W}.

Prevent all damage that would be dealt to you by sources you don't control. When a card is put into your graveyard from anywhere, sacrifice Energy Field.

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.

If you would draw a card during your draw step, instead you may skip that draw. If you do, until your next turn, you can't be attacked except by creatures with flying and/or islandwalk.

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.

Soul Echo enters the battlefield with X echo counters on it. You don't lose the game for having 0 or less life. At the beginning of your upkeep, sacrifice Soul Echo if there are no echo counters on it. Otherwise, target opponent may choose that for each 1 damage that would be dealt to you until your next upkeep, you remove an echo counter from Soul Echo instead.

Until your next turn, your life total can't change and you gain protection from everything. All permanents you control phase out. (While they're phased out, they're treated as though they don't exist. They phase in before you untap during your untap step.) Exile Teferi's Protection.

{0}: Chronatog gets +3/+3 until end of turn. You skip your next turn. Activate only once each turn.

{T}: Add {U}. {1}{U}: Chronatog Totem becomes a 1/2 blue Atog artifact creature until end of turn. {0}: Chronatog Totem gets +3/+3 until end of turn. You skip your next turn. Activate only once each turn and only if Chronatog Totem is a creature.

{1}{W}: Return Chronosavant from your graveyard to the battlefield tapped. You skip your next turn.

Flying, trample When Eater of Days enters the battlefield, you skip your next two turns.

Whenever a creature enters the battlefield, destroy it. {0}: Destroy Lethal Vapors. You skip your next turn. Any player may activate this ability.

Magosi, the Waterveil enters the battlefield tapped. {T}: Add {U}. {U}, {T}: Put an eon counter on Magosi, the Waterveil. Skip your next turn. {T}, Remove an eon counter from Magosi, the Waterveil and return it to its owner's hand: Take an extra turn after this one.

Draw four cards. You skip your next turn.

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