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.

Circle of Protection: Blue

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

Backfire

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

Flood

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

Jandor's Saddlebags

Arcane Signet

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

Meekstone

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

Revelation

Control Magic

Enchant creature
You control enchanted creature.

Air Elemental

Armageddon

Circle of Protection: Green

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

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.

Spellbook

Ivory Tower

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

Llanowar Elves

Urza's Mine

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

Urza's Tower

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

Krovikan Sorcerer

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

Birds of Paradise

Anti-Magic Aura

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

Shanodin Dryads

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

Emerald Dragonfly

Flying
{G}{G}: Emerald Dragonfly gains first strike until end of turn.

Curiosity

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

Azorius Signet

Primal Clay

As Primal Clay 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}."

Flight

Enchant creature
Enchanted creature has flying.

Twiddle

You may tap or untap target artifact, creature, or land.

Circle of Protection: Black

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

Scryb Sprites

Spell Blast

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

Brainwash

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

Wind Spirit

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

Disenchant

Indestructible Aura

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

Urza's Power Plant

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

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.

Miracle Worker

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

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.)

Prevent all combat damage that would be dealt this turn.

Simic Signet

Fyndhorn Elves

Forest

Boomerang

Return target permanent to its owner's hand.

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.

Fyndhorn Elder

Death Ward

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.)

Apprentice Wizard

Glasses of Urza

Mana Short

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

Plains

Remove Soul

Circle of Protection: Red

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

Divine Offering

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

Crumble

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

Storm Spirit

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

Sea Sprite

Swords to Plowshares

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

Ghost Ship

Ornithopter

Prodigal Sorcerer

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

Selesnya Signet

Wall of Air

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

Sol Ring

Circle of Protection: White

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