Urza's Tower

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Island

Library of Leng

You have no maximum hand size.
If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.

Final Punishment

Target player loses life equal to the damage already dealt to that player this turn.

Energy Flux

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

Strip Mine

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

Greed

Sky Diamond

Sky Diamond enters the battlefield tapped.
{T}: Add {U}.

Phyrexian Arena

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

Salt Marsh

Salt Marsh enters the battlefield tapped.
{T}: Add {U} or {B}.

Brainstorm

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

Gravestorm

At the beginning of your upkeep, target opponent may exile a card from their graveyard. If that player doesn't, you may draw a card.

Terramorphic Expanse

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

Black Vise

As Black Vise enters the battlefield, choose an opponent.
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

Fellwar Stone

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

Helldozer

{B}{B}{B}, {T}: Destroy target land. If that land was nonbasic, untap Helldozer.

Death Pits of Rath

Whenever a creature is dealt damage, destroy it. It can't be regenerated.

Wrath of God

Destroy all creatures. They can't be regenerated.

Hibernation

Return all green permanents to their owners' hands.

Swamp

Sol Ring

Mana Short

Tap all lands target player controls and that player loses all unspent mana.

Urza's Bauble

{T}, Sacrifice Urza's Bauble: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Feroz's Ban

Marble Diamond

Marble Diamond enters the battlefield tapped.
{T}: Add {W}.

Ravages of War

Urza's Mine

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

Teferi's Puzzle Box

At the beginning of each player's draw step, that player puts the cards in their hand on the bottom of their library in any order, then draws that many cards.

Stasis

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

Telepathy

Your opponents play with their hands revealed.

Tainted Aether

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

Counterspell

Stream of Acid

Destroy target land or nonblack creature.

Windfall

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Swords to Plowshares

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

Urza's Power Plant

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

Rewind

Counter target spell. Untap up to four lands.

Basalt Monolith

Basalt Monolith doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap Basalt Monolith.

Tempest of Light

Adarkar Wastes

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

Ayesha Tanaka

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)
{T}: Counter target activated ability from an artifact source unless that ability's controller pays {W}. (Mana abilities can't be targeted.)

Plains

Hurkyl's Recall

Return all artifacts target player owns to their hand.

Meekstone

Creatures with power 3 or greater don't untap during their controllers' untap steps.

Ankh of Mishra

Whenever a land enters the battlefield, Ankh of Mishra deals 2 damage to that land's controller.

Star Compass

Star Compass enters the battlefield tapped.
{T}: Add one mana of any color that a basic land you control could produce.

Wayfarer's Bauble

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

Tariff

Each player sacrifices the creature they control with the highest mana value unless they pay that creature's mana cost. If two or more creatures a player controls are tied for highest, that player chooses one.

Arena of the Ancients

Legendary creatures don't untap during their controllers' untap steps.
When Arena of the Ancients enters the battlefield, tap all legendary creatures.

Coastal Tower

Coastal Tower enters the battlefield tapped.
{T}: Add {W} or {U}.

Kismet

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

Borrowing 100,000 Arrows

Draw a card for each tapped creature target opponent controls.

Underworld Dreams

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Control Magic

Enchant creature
You control enchanted creature.

Soul Barrier

Whenever an opponent casts a creature spell, Soul Barrier deals 2 damage to that player unless they pay {2}.

Underground River

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

Exhaustion

Creatures and lands target opponent controls don't untap during their next untap step.

Energy Tap

Tap target untapped creature you control. If you do, add an amount of {C} equal to that creature's mana value.

Dakkon Blackblade

Dakkon Blackblade's power and toughness are each equal to the number of lands you control.

Oppression

Whenever a player casts a spell, that player discards a card.

Persecute

Choose a color. Target player reveals their hand and discards all cards of that color.

Blinding Light

Armageddon

Marble Titan

Arcane Laboratory

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

Winter Orb

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

Sleight of Hand

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Purify

Charcoal Diamond

Charcoal Diamond enters the battlefield tapped.
{T}: Add {B}.

Demystify

Caves of Koilos

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

Mana Breach

Whenever a player casts a spell, that player returns a land they control to its owner's hand.

Warped Devotion

Whenever a permanent is returned to a player's hand, that player discards a card.

Plumes of Peace

Enchant creature
Enchanted creature doesn't untap during its controller's untap step.
Forecast — {W}{U}, Reveal Plumes of Peace from your hand: Tap target creature. (Activate only during your upkeep and only once each turn.)

Chill

Static Orb

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