Confound

Counter target spell that targets a creature.
Draw a card.

Forest

Urborg Elf

Aether Mutation

Return target creature to its owner's hand. Create X 1/1 green Saproling creature tokens, where X is that creature's mana value.

Chromatic Sphere

{1}, {T}, Sacrifice Chromatic Sphere: Add one mana of any color. Draw a card.

Kavu Chameleon

This spell can't be countered.
{G}: Kavu Chameleon becomes the color of your choice until end of turn.

Yavimaya's Embrace

Enchant creature
You control enchanted creature.
Enchanted creature gets +2/+2 and has trample.

Repulse

Return target creature to its owner's hand.
Draw a card.

Living Airship

Flying
{2}{G}: Regenerate Living Airship.

Rainbow Crow

Flying
{1}: Rainbow Crow becomes the color of your choice until end of turn.

Ceta Sanctuary

At the beginning of your upkeep, if you control a red or green permanent, draw a card, then discard a card. If you control a red permanent and a green permanent, instead draw two cards, then discard a card.

Temporal Spring

Put target permanent on top of its owner's library.

Jaded Response

Counter target spell if it shares a color with a creature you control.

Pincer Spider

Kicker {3} (You may pay an additional {3} as you cast this spell.)
Reach (This creature can block creatures with flying.)
If Pincer Spider was kicked, it enters with a +1/+1 counter on it.

Tidal Visionary

{T}: Target creature becomes the color of your choice until end of turn.

Rushing River

Kicker—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell.)
Return target nonland permanent to its owner's hand. If this spell was kicked, return another target nonland permanent to its owner's hand.

Mystic Snake

Flash
When Mystic Snake enters, counter target spell.

Wash Out

Return all permanents of the color of your choice to their owners' hands.

Glade Gnarr

Whenever a player casts a blue spell, Glade Gnarr gets +2/+2 until end of turn.

Gaea's Skyfolk

Rooting Kavu

When Rooting Kavu dies, you may exile it. If you do, shuffle all creature cards from your graveyard into your library.

Ana Disciple

{U}, {T}: Target creature gains flying until end of turn.
{B}, {T}: Target creature gets -2/-0 until end of turn.

Coastal Drake

Flying
{1}{U}, {T}: Return target Kavu to its owner's hand.

Lay of the Land

Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Jungle Barrier

Defender (This creature can't attack.)
When Jungle Barrier enters, draw a card.

Fertile Ground

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.