Circle of Protection: White

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

Plains

Return to Dust

Exile target artifact or enchantment. If you cast this spell during your main phase, you may exile up to one other target artifact or enchantment.

Redeem the Lost

Target creature you control gains protection from the color of your choice until end of turn. Clash with an opponent. If you win, return Redeem the Lost to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)

Nevinyrral's Disk

This artifact enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Reward the Faithful

Any number of target players each gain life equal to the greatest mana value among permanents you control.

Armored Ascension

Enchant creature
Enchanted creature gets +1/+1 for each Plains you control and has flying.

Arrest

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

Knight of Meadowgrain

First strike
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Auramancer

When this creature enters, you may return target enchantment card from your graveyard to your hand.

Mistmeadow Skulk

Lifelink, protection from mana value 3 or greater

Circle of Protection: Black

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

Smite

Silent Arbiter

No more than one creature can attack each combat.
No more than one creature can block each combat.

Guard Duty

Enchant creature
Enchanted creature has defender.

Karma

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

Stave Off

Target creature gains protection from the color of your choice until end of turn.

Kraken's Eye

Whenever a player casts a blue spell, you may gain 1 life.

Wall of Faith

Defender (This creature can't attack.)
{W}: This creature gets +0/+1 until end of turn.

Circle of Protection: Red

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

Indomitable Ancients

Circle of Protection: Green

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

Oblivion Ring

When this enchantment enters, exile another target nonland permanent.
When this enchantment leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Barrenton Cragtreads

This creature can't be blocked by red creatures.

Lantern Kami

Puncturing Light

Destroy target attacking or blocking creature with power 3 or less.

Sanctimony

Whenever an opponent taps a Mountain for mana, you may gain 1 life.

Mine Excavation

Return target artifact or enchantment card from a graveyard to its owner's hand.
Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Minister of Impediments

({W/U} can be paid with either {W} or {U}.)
{T}: Tap target creature.

Raven's Run Dragoon

This creature can't be blocked by black creatures.

Guardian Seraph

Flying
If a source an opponent controls would deal damage to you, prevent 1 of that damage.

Lowland Tracker

First strike
Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.)

Mana Tithe

Counter target spell unless its controller pays {1}.

Ronom Unicorn

Sacrifice this creature: Destroy target enchantment.

Kabuto Moth

Flying
{T}: Target creature gets +1/+2 until end of turn.

Kithkin Shielddare

{W}, {T}: Target blocking creature gets +2/+2 until end of turn.

Burrenton Forge-Tender

Protection from red
Sacrifice this creature: Prevent all damage a red source of your choice would deal this turn.

Chastise

Destroy target attacking creature. You gain life equal to its power.

Angel's Feather

Whenever a player casts a white spell, you may gain 1 life.

Sword of Body and Mind

Equipped creature gets +2/+2 and has protection from green and from blue.
Whenever equipped creature deals combat damage to a player, you create a 2/2 green Wolf creature token and that player mills ten cards.
Equip {2}

Prison Term

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.
Whenever a creature an opponent controls enters, you may attach this Aura to that creature.

Sunscour

You may exile two white cards from your hand rather than pay this spell's mana cost.
Destroy all creatures.

Snow-Covered Plains

Kithkin Zealot

When this creature enters, you gain 1 life for each black and/or red permanent target opponent controls.

Harmless Assault

Prevent all combat damage that would be dealt this turn by attacking creatures.

Rune-Cervin Rider

Flying
{G/W}{G/W}: This creature gets +1/+1 until end of turn.

Lightwielder Paladin

First strike (This creature deals combat damage before creatures without first strike.)
Whenever this creature deals combat damage to a player, you may exile target black or red permanent that player controls.

Celestial Purge

Spirit Mantle

Enchant creature
Enchanted creature gets +1/+1 and has protection from creatures.

Hovermyr

Rain of Blades

Rain of Blades deals 1 damage to each attacking creature.

Lumithread Field

Creatures you control get +0/+1.
Morph {1}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)