Mishra's Factory

{T}: Add {C}.
{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Copy Artifact

You may have Copy Artifact enter as a copy of any artifact on the battlefield, except it's an enchantment in addition to its other types.

Consecrate Land

Enchant land
Enchanted land has indestructible and can't be enchanted by other Auras.

Equinox

Enchant land
Enchanted land has "{T}: Counter target spell if it would destroy a land you control."

Disenchant

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Fellwar Stone

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

Counterspell

Holy Light

Nonwhite creatures get -1/-1 until end of turn.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Conversion

At the beginning of your upkeep, sacrifice Conversion unless you pay {W}{W}.
All Mountains are Plains.

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Jayemdae Tome

Transmute Artifact

Sacrifice an artifact. If you do, search your library for an artifact card. If that card's mana value is less than or equal to the sacrificed artifact's mana value, put it onto the battlefield. If it's greater, you may pay {X}, where X is the difference. If you do, put it onto the battlefield. If you don't, put it into its owner's graveyard. Then shuffle.

City in a Bottle

Whenever one or more other nontoken permanents with a name originally printed in the Arabian Nights expansion are on the battlefield, their controllers sacrifice them.
Players can't cast spells or play lands with a name originally printed in the Arabian Nights expansion.

Tundra

Force Spike

Counter target spell unless its controller pays {1}.

Psionic Blast

Psionic Blast deals 4 damage to any target and 2 damage to you.

Savannah

Tropical Island

Drop of Honey

At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them.
When there are no creatures on the battlefield, sacrifice Drop of Honey.

Plains

Karma

At the beginning of each player's upkeep, Karma deals damage to that player equal to the number of Swamps they control.

Arena

{3}, {T}: Tap target creature you control and target creature of an opponent's choice they control. Those creatures fight each other. (Each deals damage equal to its power to the other.)

Divine Offering

Destroy target artifact. You gain life equal to its mana value.

Living Plane

All lands are 1/1 creatures that are still lands.

Rod of Ruin

{3}, {T}: Rod of Ruin deals 1 damage to any target.

Prodigal Sorcerer

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

Kormus Bell

All Swamps are 1/1 black creatures that are still lands.

Hurkyl's Recall

Return all artifacts target player owns to their hand.

Skull of Orm

{5}, {T}: Return target enchantment card from your graveyard to your hand.

Aeolipile

{1}, {T}, Sacrifice Aeolipile: It deals 2 damage to any target.

Argivian Archaeologist

{W}{W}, {T}: Return target artifact card from your graveyard to your hand.

Control Magic

Enchant creature
You control enchanted creature.

Flash Counter

Jade Statue

{2}: Jade Statue becomes a 3/6 Golem artifact creature until end of combat. Activate only during combat.

Dance of Many

When Dance of Many enters, create a token that's a copy of target nontoken creature.
When Dance of Many leaves the battlefield, exile the token.
When the token leaves the battlefield, sacrifice Dance of Many.
At the beginning of your upkeep, sacrifice Dance of Many unless you pay {U}{U}.

Jalum Tome

{2}, {T}: Draw a card, then discard a card.

Sylvan Library

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

Sindbad

{T}: Draw a card and reveal it. If it isn't a land card, discard it.

Avoid Fate

Counter target instant or Aura spell that targets a permanent you control.

Circle of Protection: Red

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Chaos Orb

{1}, {T}: If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy Chaos Orb.

Dust to Dust

Strip Mine

{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.

Maze of Ith

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

Boomerang

Return target permanent to its owner's hand.

Candelabra of Tawnos

Untamed Wilds

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

Reverse Damage

The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Island

Ivory Tower

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Rainbow Vale

{T}: Add one mana of any color. An opponent gains control of Rainbow Vale at the beginning of the next end step.

Recall

Discard X cards, then return a card from your graveyard to your hand for each card discarded this way. Exile Recall.

Balance

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Titania's Song

Each noncreature artifact loses all abilities and becomes an artifact creature with power and toughness each equal to its mana value. If Titania's Song leaves the battlefield, this effect continues until end of turn.