Control Magic

Enchant creature
You control enchanted creature.

Circle of Protection: Green

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

Shanodin Dryads

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Circle of Protection: Blue

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

Emerald Dragonfly

Flying
{G}{G}: This creature gains first strike until end of turn.

Island

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.

Boomerang

Return target permanent to its owner's hand.

Urza's Power Plant

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

Glasses of Urza

Circle of Protection: White

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

Prodigal Sorcerer

{T}: This creature deals 1 damage to any target.

Fyndhorn Elves

Curiosity

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

Death Ward

Urza's Tower

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

Miracle Worker

{T}: Destroy target Aura attached to a creature you control.

Azorius Signet

Air Elemental

Forest

Ornithopter

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 Soulsinger and Rubinia Soulsinger remains tapped.

Circle of Protection: Red

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

Brainwash

Enchant creature
Enchanted creature can't attack unless its controller pays {3}.

Backfire

Enchant creature
Whenever enchanted creature deals damage to you, this Aura deals that much damage to that creature's controller.

Disenchant

Primal Clay

As this creature enters, it becomes your choice of a 3/3 artifact creature, a 2/2 artifact creature with flying, or a 1/6 Wall artifact creature with defender in addition to its other types. (A creature with defender can't attack.)

Energy Flux

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

Spell Blast

Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)

Urza's Mine

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

Ghost Ship

Flying
{U}{U}{U}: Regenerate this creature.

Arcane Signet

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

Sol Ring

Flood

{U}{U}: Tap target creature without flying.

Armageddon

Divine Offering

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

Robe of Mirrors

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature has shroud. (It can't be the target of spells or abilities.)

Selesnya Signet

Llanowar Elves

Swords to Plowshares

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

Circle of Protection: Black

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

Crumble

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.

Regeneration

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
{G}: Regenerate enchanted creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Revelation

Mana Short

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

Indestructible Aura

Prevent all damage that would be dealt to target creature this turn.

Remove Soul

Birds of Paradise

Meekstone

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

Wind Spirit

Flying
Menace (This creature can't be blocked except by two or more creatures.)

Magus of the Unseen

{1}{U}, {T}: Untap target artifact an opponent controls and gain control of it until end of turn. It gains haste until end of turn. When you lose control of the artifact, tap it.

Plains

Krovikan Sorcerer

{T}, Discard a nonblack card: Draw a card.
{T}, Discard a black card: Draw two cards, then discard one of them.

Scryb Sprites

Anti-Magic Aura

Enchant creature
Enchanted creature can't be the target of spells and can't be enchanted by other Auras.

Aspect of Wolf

Enchant creature
Enchanted creature gets +X/+Y, where X is half the number of Forests you control, rounded down, and Y is half the number of Forests you control, rounded up.

Spellbook

Flight

Enchant creature
Enchanted creature has flying.

Storm Spirit

Flying
{T}: This creature deals 2 damage to target creature.

Fyndhorn Elder

Apprentice Wizard

Sea Sprite

Ivory Tower

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

Wall of Air

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