Destroy all artifacts, creatures, and enchantments.

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

Artifact and enchantment spells your opponents cast cost {2} more to cast.

Sacrifice Aura of Silence: Destroy target artifact or enchantment.

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

At the beginning of your upkeep, if you control no permanents other than Barren Glory and have no cards in hand, you win the game.

Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.

Each player chooses from among the permanents they control an artifact, a creature, an enchantment, and a land, then sacrifices the rest.

Imprint -- When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand.

{T}: Add one mana of any of the exiled card's colors.

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

Sacrifice Commander's Sphere: Draw a card.

At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature.

If a land is tapped for mana, it produces {B} instead of any other type and amount.

Destroy all creatures.

Each opponent loses two times X life. You gain life equal to the life lost this way.

At the beginning of your upkeep, put a despair counter on Descent into Madness, then each player exiles X permanents they control and/or cards from their hand, where X is the number of despair counters on Descent into Madness.

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

Return all creatures to their owners' hands.

Each opponent loses X life. You gain life equal to the life lost this way.

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.

{X}, {T}: Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can't be 0.

Flying

Cumulative upkeep--Gain control of a land you don't control. (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.)

Herald of Leshrac gets +1/+1 for each land you control but don't own.

When Herald of Leshrac leaves the battlefield, each player gains control of each land they own that you control.

Lands don't untap during their controllers' untap steps.

At the beginning of each player's upkeep, that player untaps a land they control.

All creatures lose all abilities and have base power and toughness 1/1.

Whenever a spell or ability an opponent controls destroys a noncreature permanent you control, you may destroy target permanent that opponent controls.

Whenever one or more creatures attack, Lightmine Field deals damage to each of those creatures equal to the number of attacking creatures.

Nonartifact spells cost {1} more to cast.

Creatures without flying can't attack.

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}.

Players can't cast spells that share a color with the spell most recently cast this turn.

Mana Vault doesn't untap during your untap step.

At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.

At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.

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

When you cast this spell, counter it unless you sacrifice a land.

At the beginning of each player's upkeep, that player sacrifices a land.

When there are no lands on the battlefield, sacrifice Mana Vortex.

Choose one --

• Exile all artifacts.

• Exile all creatures.

• Exile all enchantments.

• Exile all planeswalkers.

Creatures without flying can't attack.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever you cast a noncreature spell, create a 1/1 white Monk creature token with prowess.

Whenever a player casts a spell, counter it unless that player pays {3}.

All creatures get -1/-1.

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

Whenever a player puts a nontoken creature onto the battlefield, that player returns a land they control to its owner's hand.

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

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

If a player would draw a card, that player skips that draw instead.

At the beginning of each end step, each player sacrifices a permanent unless they discard a card.

Each player loses a third of their life, then discards a third of the cards in their hand, then sacrifices a third of the creatures they control, then sacrifices a third of the lands they control. Round up each time.

Players have no maximum hand size.

At the beginning of each opponent's upkeep, Price of Knowledge deals damage to that player equal to the number of cards in that player's hand.

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.

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

Each player loses 1 life, discards a card, sacrifices a creature, then sacrifices a land.

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 {C}{C}.

Spells cost {1} more to cast.

Creatures can't attack you or planeswalkers you control unless their controller pays {X} for each of those creatures, where X is the number of enchantments you control.

Players skip their untap steps.

At the beginning of your upkeep, sacrifice Stasis unless you pay {U}.

As long as Static Orb is untapped, players can't untap more than two permanents during their untap steps.

Whenever a creature enters the battlefield, its controller sacrifices a creature or land.

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

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

Noncreature spells cost {1} more to cast.

First strike

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

At the beginning of each player's upkeep, destroy target nonartifact creature that player controls of their choice. It can't be regenerated.

Noncreature spells cost {1} more to cast.

For each player, you choose from among the permanents that player controls an artifact, a creature, an enchantment, and a planeswalker. Then each player sacrifices all other nonland permanents they control.

As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.)

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Destroy all creatures. They can't be regenerated.