Wild Mongrel

Discard a card: This creature gets +1/+1 and becomes the color of your choice until end of turn.

Yavimaya Coast

{T}: Add {C}.
{T}: Add {G} or {U}. This land deals 1 damage to you.

Gilded Drake

Flying
When this creature enters, exchange control of this creature and up to one target creature an opponent controls. If you don't or can't make an exchange, sacrifice this creature. This ability still resolves if its target becomes illegal.

City of Brass

Whenever this land becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Mystic Enforcer

Protection from black
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +3/+3 and has flying.

Squee, Goblin Nabob

At the beginning of your upkeep, you may return this card from your graveyard to your hand.

Tranquil Domain

Flooded Strand

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

Frantic Search

Draw two cards, then discard two cards. Untap up to three lands.

Survival of the Fittest

{G}, Discard a creature card: Search your library for a creature card, reveal that card, put it into your hand, then shuffle.

Circular Logic

Counter target spell unless its controller pays {1} for each card in your graveyard.
Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Meddling Mage

As this creature enters, choose a nonland card name.
Spells with the chosen name can't be cast.

Daze

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays {1}.

Aquamoeba

Discard a card: Switch this creature's power and toughness until end of turn.

Plains

Forest

Arrogant Wurm

Trample
Madness {2}{G} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Brushland

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

Mana Leak

Counter target spell unless its controller pays {3}.

Island

Tormod's Crypt

{T}, Sacrifice this artifact: Exile target player's graveyard.

Annul

Counter target artifact or enchantment spell.

Counterspell

Swords to Plowshares

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

Waterfront Bouncer

{U}, {T}, Discard a card: Return target creature to its owner's hand.

Basking Rootwalla

{1}{G}: This creature gets +2/+2 until end of turn. Activate only once each turn.
Madness {0} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Wonder

Flying
As long as this card is in your graveyard and you control an Island, creatures you control have flying.