When Agent of Treachery enters the battlefield, gain control of target permanent.

At the beginning of your end step, if you control three or more permanents you don't own, draw three cards.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.

You draw a card at the beginning of the next turn's upkeep.

{T}: Add {C}.

{1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

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

Magecraft -- Whenever you cast or copy an instant or sorcery spell, draw a card.

Equipped creature has deathtouch and lifelink.

Equip {2}

Each player separates all nontoken lands they control into two piles. For each player, one of their piles is chosen by one of their opponents of their choice. Destroy all lands in the chosen piles. Tap all lands in the other piles.

This spell costs {1} less to cast for each creature on the battlefield.

Blasphemous Act deals 13 damage to each creature.

Blazing Volley deals 1 damage to each creature your opponents control.

Nonbasic lands are Mountains.

Draw three cards, then put two cards from your hand on top of your library in any order.

Search target opponent's library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.

Whenever a player taps a nonbasic land for mana, Burning Earth deals 1 damage to that player.

{T}: Add {C}.

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

+1: Add {R}. Chandra, Dressed to Kill deals 1 damage to up to one target player or planeswalker.

+1: Exile the top card of your library. If it's red, you may cast it this turn.

-7: Exile the top five cards of your library. You may cast red spells from among them this turn. You get an emblem with "Whenever you cast a red spell, this emblem deals X damage to any target, where X is the amount of mana spent to cast that spell."

{T}: Cinder Pyromancer deals 1 damage to target player or planeswalker.

Whenever you cast a red spell, you may untap Cinder Pyromancer.

Whenever a creature without flying attacks you or a planeswalker you control, Circle of Flame deals 1 damage to that creature.

{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.

Enchant creature

You control enchanted creature.

Enchanted creature has infect. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Counter target spell.

No more than two creatures can attack you each combat.

Haste

{T}: Cunning Sparkmage deals 1 damage to any target.

Enchant creature

Whenever enchanted creature deals damage to an opponent, you may draw a card.

Return target nonland permanent you don't control to its owner's hand.

Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

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

You may choose new targets for target spell or ability.

{T}: Add {C}.

{T}: Desert deals 1 damage to target attacking creature. Activate only during the end of combat step.

Electrickery deals 1 damage to target creature you don't control.

Overload {1}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Electrolyze deals 2 damage divided as you choose among one or two targets.

Draw a card.

Defender

Whenever you cast an instant or sorcery spell, Electrostatic Field deals 1 damage to each opponent.

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

Flying

Whenever the fourth spell of a turn is cast, flip Erayo, Soratami Ascendant.

Whenever an opponent casts their first spell each turn, counter that spell.

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

Sorcerous Inspiration -- At the beginning of your upkeep, return an instant or sorcery card at random from your graveyard to your hand.

Fire of Tzeentch -- Whenever you cast an instant or sorcery spell, Exalted Flamer of Tzeentch deals 1 damage to each opponent.

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

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

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

Counter target noncreature spell.

Fire Diamond enters the battlefield tapped.

{T}: Add {R}.

Whenever you cast a noncreature spell, Firebrand Archer deals 1 damage to each opponent.

Defender, flying

Prevent all combat damage that would be dealt to and dealt by Fog Bank.

As Frostboil Snarl enters the battlefield, you may reveal an Island or Mountain card from your hand. If you don't, Frostboil Snarl enters the battlefield tapped.

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

{T}: Gelectrode deals 1 damage to any target.

Whenever you cast an instant or sorcery spell, you may untap Gelectrode.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

Three Autostubs -- Whenever another source you control deals exactly 1 damage to a permanent or player, Ghyrson Starn, Kelermorph deals 2 damage to that permanent or player.

First strike

When Goblin Chainwhirler enters the battlefield, it deals 1 damage to each opponent and each creature and planeswalker they control.

Goblin Sharpshooter doesn't untap during your untap step.

Whenever a creature dies, untap Goblin Sharpshooter.

{T}: Goblin Sharpshooter deals 1 damage to any target.

Equipped creature has deathtouch.

Equip {2}

Grapeshot deals 1 damage to any target.

Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.

Untap all creatures and gain control of them until end of turn. They gain haste until end of turn.

Create a token that's a copy of target creature you control, except the token has flying and it isn't legendary.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Izzet Boilerworks enters the battlefield tapped.

When Izzet Boilerworks enters the battlefield, return a land you control to its owner's hand.

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

Choose one --

• Counter target noncreature spell unless its controller pays {2}.

• Izzet Charm deals 2 damage to target creature.

• Draw two cards, then discard two cards.

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

Whenever you cast a noncreature spell, Kessig Flamebreather deals 1 damage to each opponent.

Spectacle {R} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

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

Equip {0}

When Maestros Theater enters the battlefield, sacrifice it. When you do, search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

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

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

Play with the top card of your library revealed.

You may cast instant and sorcery spells from the top of your library.

Whenever you cast an instant or sorcery spell from your library, copy it. You may choose new targets for the copy.

{T}: Add {U}.

{2}{U}: Put an hour counter on Midnight Clock.

At the beginning of each upkeep, put an hour counter on Midnight Clock.

When the twelfth hour counter is put on Midnight Clock, shuffle your hand and graveyard into your library, then draw seven cards. Exile Midnight Clock.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

As Monastery Siege enters the battlefield, choose Khans or Dragons.

• Khans -- At the beginning of your draw step, draw an additional card, then discard a card.

• Dragons -- Spells your opponents cast that target you or a permanent you control cost {2} more to cast.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Choose three. You may choose the same mode more than once.

• Counter target spell unless its controller pays {3}.

• Return target creature to its owner's hand.

• Draw a card.

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}.

Counter target noncreature spell.

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

{U}{U}: Attach Neurok Stealthsuit to target creature you control.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

This spell can't be countered.

Flying

Whenever you draw a card, Niv-Mizzet, Parun deals 1 damage to any target.

Whenever a player casts an instant or sorcery spell, you draw a card.

Flying

Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target.

{T}: Draw a card.

Flash (You may cast this spell any time you could cast an instant.)

Enchant creature

Whenever enchanted creature deals damage to an opponent, you may draw a card.

Look at the top three cards of your library, then put them back in any order. You may shuffle.

Draw a card.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Whenever a player taps a land for mana, if it's not that player's turn, destroy that land.

{T}: Prodigal Pyromancer deals 1 damage to any target.

{T}: Prodigal Sorcerer deals 1 damage to any target.

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

Enchant creature

Enchanted creature has "{T}: This creature deals 1 damage to target player or planeswalker. You draw a card."

Whenever you cast or copy an instant or sorcery spell, Ral, Storm Conduit deals 1 damage to target opponent or planeswalker.

+2: Scry 1.

-2: When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

{T}: Razorfin Hunter deals 1 damage to any target.

You have no maximum hand size.

{T}: Add {C}.

Whenever a creature is dealt damage, Repercussion deals that much damage to that creature's controller.

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

{T}: Add {U}.

{T}: Add {R}.

Ward {2}

As Roaming Throne enters the battlefield, choose a creature type.

Roaming Throne is the chosen type in addition to its other types.

If a triggered ability of another creature you control of the chosen type triggers, it triggers an additional time.

Equipped creature gets +1/+1 and has trample and lifelink.

{1}: Permanents your opponents control lose hexproof and indestructible until end of turn.

Equip {2}

{T}: Add {C}.

{2}{R}, {T}: Shivan Gorge deals 1 damage to each opponent.

Enchant creature

Whenever enchanted creature deals damage to a player, return target creature that player controls to its owner's hand.

Enchant creature

Whenever enchanted creature deals damage to a player, return target creature that player controls to its owner's hand.

Sky Diamond enters the battlefield tapped.

{T}: Add {U}.

{T}: Add {R}.

Channel -- {3}{R}, Discard Sokenzan, Crucible of Defiance: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs {1} less to activate for each legendary creature you control.

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

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

Spikefield Hazard deals 1 damage to any target. If a permanent dealt damage this way would die this turn, exile it instead.

Spikefield Cave enters the battlefield tapped.

{T}: Add {R}.

Starstorm deals X damage to each creature.

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

Stormcarved Coast enters the battlefield tapped unless you control two or more other lands.

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

Indestructible

As Stuffy Doll enters the battlefield, choose a player.

Whenever Stuffy Doll is dealt damage, it deals that much damage to the chosen player.

{T}: Stuffy Doll deals 1 damage to itself.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain.

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

{T}: Add {C}.

{T}: Add {U} or {R}. Talisman of Creativity deals 1 damage to you.

Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)

As long as Tandem Lookout is paired with another creature, each of those creatures has "Whenever this creature deals damage to an opponent, draw a card."

Tectonic Hazard deals 1 damage to each opponent and each creature they control.

Temple of Epiphany enters the battlefield tapped.

When Temple of Epiphany enters the battlefield, scry 1.

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

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

Defender

{T}: Thermo-Alchemist deals 1 damage to each opponent.

Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.

At the beginning of your upkeep, if you control an artifact, create a 1/1 colorless Thopter artifact creature token with flying.

Whenever one or more artifact creatures you control deal combat damage to a player, draw a card.

You have no maximum hand size.

{T}: Add {C}.

Training Center enters the battlefield tapped unless you have two or more opponents.

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

Defender (This creature can't attack.)

Whenever Wall of Tears blocks a creature, return that creature to its owner's hand at end of combat.

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

{T}: Add {C}.

{2}, {T}: Target commander gains lifelink until end of turn.

Choose one --

• Foil Their Scheme -- Counter target spell.

• Learn Their Secrets -- Draw two cards, then discard two cards.