Burgeoning

Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.

Forest

Rites of Flourishing

At the beginning of each player's draw step, that player draws an additional card.
Each player may play an additional land on each of their turns.

Mind's Eye

Whenever an opponent draws a card, you may pay {1}. If you do, draw a card.

Harmonize

Tribute to the World Tree

Whenever a creature you control enters, draw a card if its power is 3 or greater. Otherwise, put two +1/+1 counters on it.

Slime Against Humanity

Create a 0/0 green Ooze creature token with trample. Put X +1/+1 counters on it, where X is two plus the total number of cards you own in exile and in your graveyard that are Oozes or are named Slime Against Humanity.
A deck can have any number of cards named Slime Against Humanity.

Emerald Medallion

Green spells you cast cost {1} less to cast.

Exploration

You may play an additional land on each of your turns.

Multani's Presence

Whenever a spell you've cast is countered, draw a card.

Omnath, Locus of Mana

You don't lose unspent green mana as steps and phases end.
Omnath gets +1/+1 for each unspent green mana you have.

Overgrowth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}{G}.

Veil of Summer

Draw a card if an opponent has cast a blue or black spell this turn. Spells you control can't be countered this turn. You and permanents you control gain hexproof from blue and from black until end of turn. (You and they can't be the targets of blue or black spells or abilities your opponents control.)

Horn of Greed

Whenever a player plays a land, that player draws a card.

Vernal Bloom

Whenever a Forest is tapped for mana, its controller adds an additional {G}.

Howling Mine

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

Explore

You may play an additional land this turn.
Draw a card.

Wilderness Reclamation

At the beginning of your end step, untap all lands you control.

Life's Legacy

As an additional cost to cast this spell, sacrifice a creature.
Draw cards equal to the sacrificed creature's power.

Gaea's Blessing

Target player shuffles up to three target cards from their graveyard into their library.
Draw a card.
When this card is put into your graveyard from your library, shuffle your graveyard into your library.