Game-Trail Changeling

Changeling (This card is every creature type.)
Trample

Fyndhorn Elves

Moonscarred Werewolf

Vigilance
{T}: Add {G}{G}.
At the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.

Scorned Villager

{T}: Add {G}.
At the beginning of each upkeep, if no spells were cast last turn, transform this creature.

Scorned Villager // Moonscarred Werewolf

Druid of the Cowl

Ironfang

First strike
At the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.

Village Ironsmith

First strike
At the beginning of each upkeep, if no spells were cast last turn, transform this creature.

Village Ironsmith // Ironfang

Rot Wolf

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever a creature dealt damage by Rot Wolf this turn dies, you may draw a card.

Branded Howler

At the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.

Convicted Killer

At the beginning of each upkeep, if no spells were cast last turn, transform this creature.

Convicted Killer // Branded Howler

Waxing Moon

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

Ulvenwald Abomination

Ulvenwald Captive

Defender
{T}: Add {G}.
{5}{G}{G}: Transform this creature.

Ulvenwald Captive // Ulvenwald Abomination

Arbor Elf

Immerwolf

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Each other creature you control that's a Wolf or a Werewolf gets +1/+1.
Non-Human Werewolves you control can't transform.

Llanowar Elves

Rampaging Werewolf

Tormented Pariah

Tormented Pariah // Rampaging Werewolf

Devoted Druid

{T}: Add {G}.
Put a -1/-1 counter on this creature: Untap this creature.

Copper Myr

Darkthicket Wolf

{2}{G}: This creature gets +2/+2 until end of turn. Activate only once each turn.

Moonmist

Transform all Humans. Prevent all combat damage that would be dealt this turn by creatures other than Werewolves and Wolves. (Only double-faced cards can be transformed.)

Krallenhorde Wantons

Grizzled Outcasts

Grizzled Outcasts // Krallenhorde Wantons

Lone Wolf

You may have this creature assign its combat damage as though it weren't blocked.

Rancor

Enchant creature
Enchanted creature gets +2/+0 and has trample.
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Serpent Skin

Flash
Enchant creature
Enchanted creature gets +1/+1.
{G}: Regenerate enchanted creature.

Young Wolf

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

Kessig Wolf

{1}{R}: This creature gains first strike until end of turn.

Elvish Mystic

Spider Umbra

Enchant creature
Enchanted creature gets +1/+1 and has reach. (It can block creatures with flying.)
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Naga Vitalist

{T}: Add one mana of any type that a land you control could produce.

Essence Warden

Whenever another creature enters, you gain 1 life.

Sakura-Tribe Elder

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

Howlpack of Estwald

Villagers of Estwald

Villagers of Estwald // Howlpack of Estwald

Gatstaf Ravagers

Menace (This creature can't be blocked except by two or more creatures.)
At the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.

Gatstaf Arsonists

Gatstaf Arsonists // Gatstaf Ravagers

Snake Umbra

Enchant creature
Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card."
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Blisterpod

Devoid (This card has no color.)
When this creature dies, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add {C}."

Goblin War Drums

Creatures you control have menace. (They can't be blocked except by two or more creatures.)

Brazen Wolves

Whenever this creature attacks, it gets +2/+0 until end of turn.

Dronepack Kindred

Trample
{1}: This creature gets +1/+0 until end of turn.

Vildin-Pack Outcast

Trample
{R}: This creature gets +1/-1 until end of turn.
{5}{R}{R}: Transform this creature.

Vildin-Pack Outcast // Dronepack Kindred

Hinterland Scourge

This creature must be blocked if able.
At the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.

Hinterland Hermit

Hinterland Hermit // Hinterland Scourge

Timber Shredder

Trample
At the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.

Hinterland Logger

Hinterland Logger // Timber Shredder

One of the Pack

Solitary Hunter

Solitary Hunter // One of the Pack

Sacred Wolf

Hexproof (This creature can't be the target of spells or abilities your opponents control.)