Forest

Primordial Sage

Whenever you cast a creature spell, you may draw a card.

Blitz Hellion

Trample, haste
At the beginning of the end step, this creature's owner shuffles it into their library.

Fires of Yavimaya

Creatures you control have haste.
Sacrifice this enchantment: Target creature gets +2/+2 until end of turn.

Hornet Cannon

{3}, {T}: Create a 1/1 colorless Insect artifact creature token with flying and haste named Hornet. Destroy it at the beginning of the next end step.

Raging Kavu

Rampant Growth

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Primal Forcemage

Whenever another creature you control enters, that creature gets +3/+3 until end of turn.

Simic Sky Swallower

Flying, trample
Shroud (This creature can't be the target of spells or abilities.)

Bloodbraid Elf

Haste (This creature can attack and {T} as soon as it comes under your control.)
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Regress

Return target permanent to its owner's hand.

Pandemonium

Whenever a creature enters, that creature's controller may have it deal damage equal to its power to any target of their choice.

Thundermare

Haste (This creature can attack and {T} as soon as it comes under your control.)
When this creature enters, tap all other creatures.

Rip-Clan Crasher

Warstorm Surge

Whenever a creature you control enters, it deals damage equal to its power to any target.

Hellspark Elemental

Trample, haste
At the beginning of the end step, sacrifice this creature.
Unearth {1}{R} ({1}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Evolving Wilds

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Vulshok Berserker

Haste (This creature can attack and {T} as soon as it comes under your control.)

Riku of Two Reflections

Whenever you cast an instant or sorcery spell, you may pay {U}{R}. If you do, copy that spell. You may choose new targets for the copy.
Whenever another nontoken creature you control enters, you may pay {G}{U}. If you do, create a token that's a copy of that creature.

Farhaven Elf

When this creature enters, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

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.

Ronin Warclub

Equipped creature gets +2/+1.
Whenever a creature you control enters, attach this Equipment to that creature.
Equip {5} ({5}: Attach to target creature you control. Equip only as a sorcery.)

Rakka Mar

Haste
{R}, {T}: Create a 3/1 red Elemental creature token with haste.

Divination

Cultivate

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Mountain

Island

Sentinels of Glen Elendra

Essence Warden

Whenever another creature enters, you gain 1 life.

Gaea's Revenge

This spell can't be countered.
Haste
This creature can't be the target of nongreen spells or abilities from nongreen sources.

Gigantomancer

{1}: Target creature you control has base power and toughness 7/7 until end of turn.

Jungle Barrier

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

Man-o'-War

When this creature enters, return target creature to its owner's hand.

Strength in Numbers

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.