It of the Horrid Swarm

Emerge {6}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
When you cast this spell, create two 1/1 green Insect creature tokens.

Naturalize

Somberwald Stag

When Somberwald Stag enters, you may have it fight target creature you don't control.

Leaf Gilder

Prey Upon

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Springsage Ritual

Destroy target artifact or enchantment. You gain 4 life.

Decimator of the Provinces

Emerge {6}{G}{G}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
When you cast this spell, creatures you control get +2/+2 and gain trample until end of turn.
Trample, haste

Cultist's Staff

Equipped creature gets +2/+2.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Spirit of the Hunt

Flash
When Spirit of the Hunt enters, each other creature you control that's a Wolf or a Werewolf gets +0/+3 until end of turn.

Woodcutter's Grit

Target creature you control gets +3/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Field Creeper

Terrarion

Terrarion enters tapped.
{2}, {T}, Sacrifice Terrarion: Add two mana in any combination of colors.
When Terrarion is put into a graveyard from the battlefield, draw a card.

Gnarlwood Dryad

Deathtouch
Delirium — Gnarlwood Dryad gets +2/+2 as long as there are four or more card types among cards in your graveyard.

Hamlet Captain

Whenever Hamlet Captain attacks or blocks, other Humans you control get +1/+1 until end of turn.

Wild Instincts

Target creature you control gets +2/+2 until end of turn. It fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Lupine Prototype

Lupine Prototype can't attack or block unless a player has no cards in hand.

Howling Chorus

Creatures with power less than Howling Chorus's power can't block it.
Whenever Howling Chorus deals combat damage to a player, create a 3/2 colorless Eldrazi Horror creature token.

Shrill Howler

Creatures with power less than Shrill Howler's power can't block it.
{5}{G}: Transform Shrill Howler.

Shrill Howler // Howling Chorus

Caustic Caterpillar

{1}{G}, Sacrifice Caustic Caterpillar: Destroy target artifact or enchantment.

Crossroads Consecrator

{G}, {T}: Target attacking Human gets +1/+1 until end of turn.

Somberwald Alpha

Whenever a creature you control becomes blocked, it gets +1/+1 until end of turn.
{1}{G}: Target creature you control gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Elvish Visionary

When Elvish Visionary enters, draw a card.

Permeating Mass

Whenever Permeating Mass deals combat damage to a creature, that creature becomes a copy of Permeating Mass.

Forest

Swift Spinner

Flash (You may cast this spell any time you could cast an instant.)
Reach (This creature can block creatures with flying.)

Llanowar Empath

When Llanowar Empath enters, scry 2, then reveal the top card of your library. If it's a creature card, put it into your hand. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Fibrous Entangler

Vigilance
Fibrous Entangler must be blocked if able.
Fibrous Entangler can block an additional creature each combat.

Tangleclaw Werewolf

Tangleclaw Werewolf can block an additional creature each combat.
{6}{G}: Transform Tangleclaw Werewolf.

Tangleclaw Werewolf // Fibrous Entangler

Ulvenwald Abomination

Ulvenwald Captive

Defender
{T}: Add {G}.
{5}{G}{G}: Transform Ulvenwald Captive.

Ulvenwald Captive // Ulvenwald Abomination

Backwoods Survivalists

Delirium — Backwoods Survivalists gets +1/+1 and has trample as long as there are four or more card types among cards in your graveyard.

Dwynen, Gilt-Leaf Daen

Reach (This creature can block creatures with flying.)
Other Elf creatures you control get +1/+1.
Whenever Dwynen attacks, you gain 1 life for each attacking Elf you control.

Aerial Volley

Aerial Volley deals 3 damage divided as you choose among one, two, or three target creatures with flying.

Waxing Moon

Transform up to one target Werewolf you control. Creatures you control gain trample until end of turn.

Emrakul's Evangel

{T}, Sacrifice Emrakul's Evangel and any number of other non-Eldrazi creatures: Create a 3/2 colorless Eldrazi Horror creature token for each creature sacrificed this way.

Noose Constrictor

Reach
Discard a card: Noose Constrictor gets +1/+1 until end of turn.

Reclaim

Put target card from your graveyard on top of your library.

Mockery of Nature

Emerge {7}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
When you cast this spell, you may destroy target artifact or enchantment.

Wasteland Viper

Deathtouch
Bloodrush — {G}, Discard Wasteland Viper: Target attacking creature gets +1/+2 and gains deathtouch until end of turn.

Sinuous Predator

Sinuous Predator can't be blocked by more than one creature.

Kessig Prowler

Kessig Prowler // Sinuous Predator

Yeva's Forcemage

When Yeva's Forcemage enters, target creature gets +2/+2 until end of turn.

Meteorite

When Meteorite enters, it deals 2 damage to any target.
{T}: Add one mana of any color.

Rhox Maulers

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)

Wolfkin Bond

Enchant creature
When Wolfkin Bond enters, create a 2/2 green Wolf creature token.
Enchanted creature gets +2/+2.