Have

Peacekeeper

At the beginning of your upkeep, sacrifice Peacekeeper unless you pay {1}{W}.
Creatures can't attack.

Opposition

Tap an untapped creature you control: Tap target artifact, creature, or land.

Constant Mists

Buyback—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
Prevent all combat damage that would be dealt this turn.

Tropical Island

Mana Crypt

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}.

Arcades Sabboth

Flying
At the beginning of your upkeep, sacrifice Arcades Sabboth unless you pay {G}{W}{U}.
Each untapped creature you control gets +0/+2 as long as it's not attacking.
{W}: Arcades Sabboth gets +0/+1 until end of turn.

Gabriel Angelfire

At the beginning of your upkeep, choose flying, first strike, trample, or rampage 3. Gabriel Angelfire gains that ability until your next upkeep. (Whenever a creature with rampage 3 becomes blocked, it gets +3/+3 until end of turn for each creature blocking it beyond the first.)

Wall of Spears

Defender (This creature can't attack.)
First strike

Fruition

You gain 1 life for each Forest on the battlefield.

Kei Takahashi

{T}: Prevent the next 2 damage that would be dealt to target creature this turn.

Stream of Life

Angus Mackenzie

{G}{W}{U}, {T}: Prevent all combat damage that would be dealt this turn. Activate only before the combat damage step.

Powerleech

Whenever an artifact an opponent controls becomes tapped or an opponent activates an artifact's ability without {T} in its activation cost, you gain 1 life.

Animate Wall

Enchant Wall
Enchanted Wall can attack as though it didn't have defender.

Thunder Spirit

Earthcraft

Tap an untapped creature you control: Untap target basic land.

Blaze of Glory

Cast this spell only during combat before blockers are declared.
Target creature defending player controls can block any number of creatures this turn. It blocks each attacking creature this turn if able.

Vesuvan Doppelganger

You may have Vesuvan Doppelganger enter as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability."

Willow Satyr

You may choose not to untap Willow Satyr during your untap step.
{T}: Gain control of target legendary creature for as long as you control Willow Satyr and Willow Satyr remains tapped.

Pariah

Enchant creature
All damage that would be dealt to you is dealt to enchanted creature instead.

Illusionary Mask

{X}: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on {X}. If you do, you may cast that card face down as a 2/2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead it's turned face up and assigns or deals damage, is dealt damage, or becomes tapped. Activate only as a sorcery.

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.)

Rhystic Study

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

Plains

Millstone

Birds of Paradise

Prevent all combat damage that would be dealt this turn.

Time Elemental

When Time Elemental attacks or blocks, at end of combat, sacrifice it and it deals 5 damage to you.
{2}{U}{U}, {T}: Return target permanent that isn't enchanted to its owner's hand.

Wall of Junk

Defender (This creature can't attack.)
When Wall of Junk blocks, return it to its owner's hand at end of combat. (Return it only if it's on the battlefield.)

Lord Magnus

First strike
Creatures with plainswalk can be blocked as though they didn't have plainswalk.
Creatures with forestwalk can be blocked as though they didn't have forestwalk.

Tawnos's Coffin

You may choose not to untap Tawnos's Coffin during your untap step.
{3}, {T}: Exile target creature and all Auras attached to it. Note the number and kind of counters that were on that creature. When Tawnos's Coffin leaves the battlefield or becomes untapped, return that exiled card to the battlefield under its owner's control tapped with the noted number and kind of counters on it. If you do, return the other exiled cards to the battlefield under their owner's control attached to that permanent.

Al-abara's Carpet

{5}, {T}: Prevent all damage that would be dealt to you this turn by attacking creatures without flying.

Counterspell

Howling Mine

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

Rampant Growth

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

Aysen Abbey

{T}: Add {C}.
{1}, {T}: Add {W}.
{2}, {T}: Add {G} or {U}.

Rasputin Dreamweaver

Rasputin Dreamweaver enters with seven dream counters on it.
Remove a dream counter from Rasputin: Add {C}.
Remove a dream counter from Rasputin: Prevent the next 1 damage that would be dealt to Rasputin this turn.
At the beginning of your upkeep, if Rasputin started the turn untapped, put a dream counter on it.
Rasputin can't have more than seven dream counters on it.

Grindstone

{3}, {T}: Target player mills two cards. If two cards that share a color were milled this way, repeat this process.

Jandor's Ring

{2}, {T}, Discard the last card you drew this turn: Draw a card.

Gemstone Mine

Gemstone Mine enters with three mining counters on it.
{T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

Aura of Silence

Artifact and enchantment spells your opponents cast cost {2} more to cast.
Sacrifice Aura of Silence: Destroy target artifact or enchantment.

Abeyance

Until end of turn, target player can't cast instant or sorcery spells, and that player can't activate abilities that aren't mana abilities.
Draw a card.

Martyrs of Korlis

As long as Martyrs of Korlis is untapped, all damage that would be dealt to you by artifacts is dealt to Martyrs of Korlis instead.

Preacher

You may choose not to untap Preacher during your untap step.
{T}: For as long as Preacher remains tapped, gain control of target creature of an opponent's choice they control.

Wall of Vapor

Defender (This creature can't attack.)
Prevent all damage that would be dealt to Wall of Vapor by creatures it's blocking.

Living Wall

Defender (This creature can't attack.)
{1}: Regenerate Living Wall.

Boomerang

Return target permanent to its owner's hand.

Eureka

Starting with you, each player may put a permanent card from their hand onto the battlefield. Repeat this process until no one puts a card onto the battlefield.

Wall of Swords

Defender (This creature can't attack.)
Flying

Holy Day

Necropolis

Defender (This creature can't attack.)
Exile a creature card from your graveyard: Put X +0/+1 counters on Necropolis, where X is the exiled card's mana value.

Bubble Matrix

Prevent all damage that would be dealt to creatures.

Spirit Link

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Whenever enchanted creature deals damage, you gain that much life.

Lull

Prevent all combat damage that would be dealt this turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Island

Kismet

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

Island of Wak-Wak

{T}: Target creature with flying has base power 0 until end of turn.

Rubinia Soulsinger

You may choose not to untap Rubinia Soulsinger during your untap step.
{T}: Gain control of target creature for as long as you control Rubinia and Rubinia remains tapped.

Wall of Air

Defender, flying (This creature can't attack, and it can block creatures with flying.)

Brushland

{T}: Add {C}.
{T}: Add {G} or {W}. Brushland deals 1 damage to you.

Elvish Spirit Guide

Exile Elvish Spirit Guide from your hand: Add {G}.

Maze of Ith

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

Wall of Caltrops

Defender (This creature can't attack.)
Whenever Wall of Caltrops blocks a creature, if at least one other Wall creature is blocking that creature and no non-Wall creatures are blocking that creature, Wall of Caltrops gains banding until end of turn. (If any creatures with banding you control are blocking a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by.)

Winding Canyons

{T}: Add {C}.
{2}, {T}: You may cast creature spells this turn as though they had flash.

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.

Gift of Estates

If an opponent controls more lands than you, search your library for up to three Plains cards, reveal them, put them into your hand, then shuffle.

Singing Tree

{T}: Target attacking creature has base power 0 until end of turn.

Altar of Dementia

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Swords to Plowshares

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

Ivory Tower

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

Propaganda

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