Unhallowed Pact

Enchant creature
When enchanted creature dies, return that card to the battlefield under your control.

Sheltering Word

Target creature you control gains hexproof until end of turn. You gain life equal to that creature's toughness. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

Giant Growth

Target creature gets +3/+3 until end of turn.

Dark Heart of the Wood

Run Afoul

Target opponent sacrifices a creature of their choice with flying.

Rotfeaster Maggot

When Rotfeaster Maggot enters, exile target creature card from a graveyard. You gain life equal to that card's toughness.

Bone Splinters

As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.

Undergrowth Scavenger

Undergrowth Scavenger enters with a number of +1/+1 counters on it equal to the number of creature cards in all graveyards.

Forest

Caustic Tar

Enchant land
Enchanted land has "{T}: Target player loses 3 life."

Unholy Strength

Enchant creature
Enchanted creature gets +2/+1.

Back to Nature

Warden of the Woods

Vigilance (Attacking doesn't cause this creature to tap.)
Whenever Warden of the Woods becomes the target of a spell or ability an opponent controls, you may draw two cards.

Undead Minotaur

Verdant Haven

Enchant land
When Verdant Haven enters, you gain 2 life.
Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

Child of Night

Svogthos, the Restless Tomb

{T}: Add {C}.
{3}{B}{G}: Until end of turn, Svogthos, the Restless Tomb becomes a black and green Plant Zombie creature with "This creature's power and toughness are each equal to the number of creature cards in your graveyard." It's still a land.

Plummet

Butcher Ghoul

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.)