Crashing Boars

Whenever Crashing Boars attacks, defending player chooses an untapped creature they control. That creature blocks Crashing Boars this turn if able.

Badlands

Rakdos Signet

Boartusk Liege

Trample
Other red creatures you control get +1/+1.
Other green creatures you control get +1/+1.

Bathe in Dragonfire

Bathe in Dragonfire deals 4 damage to target creature.

Fire Diamond

Fire Diamond enters tapped.
{T}: Add {R}.

Mountain

Butcher's Cleaver

Equipped creature gets +3/+0.
As long as equipped creature is a Human, it has lifelink.
Equip {3}

Lord of the Pit

Flying, trample
At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can't, Lord of the Pit deals 7 damage to you.

Sword of Fire and Ice

Equipped creature gets +2/+2 and has protection from red and from blue.
Whenever equipped creature deals combat damage to a player, Sword of Fire and Ice deals 2 damage to any target and you draw a card.
Equip {2}

Forest

Gilded Goose

Flying
When Gilded Goose enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
{1}{G}, {T}: Create a Food token.
{T}, Sacrifice a Food: Add one mana of any color.

Darigaaz's Caldera

When Darigaaz's Caldera enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {B}, {R}, or {G}.

Sisters of the Flame

Brood Butcher

Devoid (This card has no color.)
When Brood Butcher enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."
{B}{G}, Sacrifice a creature: Target creature gets -2/-2 until end of turn.

Captive Flame

{R}: Target creature gets +1/+0 until end of turn.

Cinder Barrens

Cinder Barrens enters tapped.
{T}: Add {B} or {R}.

Prickleboar

During your turn, Prickleboar gets +2/+0 and has first strike. (It deals combat damage before creatures without first strike.)

Coal Stoker

When Coal Stoker enters, if you cast it from your hand, add {R}{R}{R}.

Gruul Signet

Luxury Suite

Luxury Suite enters tapped unless you have two or more opponents.
{T}: Add {B} or {R}.

Undergrowth Stadium

Undergrowth Stadium enters tapped unless you have two or more opponents.
{T}: Add {B} or {G}.

Coal Golem

{3}, Sacrifice Coal Golem: Add {R}{R}{R}.

Witch's Oven

{T}, Sacrifice a creature: Create a Food token. If the sacrificed creature's toughness was 4 or greater, create two Food tokens instead. (They're artifacts with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")

Wolf's Quarry

Create three 1/1 green Boar creature tokens with "When this creature dies, create a Food token." (A Food token is an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")

Might of Oaks

Target creature gets +7/+7 until end of turn.

Nessian Boar

All creatures able to block Nessian Boar do so.
Whenever Nessian Boar becomes blocked by a creature, that creature's controller draws a card.

Great Furnace

Gluttonous Troll

Trample
When Gluttonous Troll enters, create a number of Food tokens equal to the number of opponents you have. (Food tokens are artifacts with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
{1}{G}, Sacrifice another nonland permanent: Gluttonous Troll gets +2/+2 until end of turn.

Noxious Bayou

{T}: Add {B} or {G}. You get a poison counter.

Shower of Coals

Shower of Coals deals 2 damage to each of up to three targets.
Threshold — Shower of Coals deals 4 damage to each of those permanents and/or players instead if seven or more cards are in your graveyard.

Kuro, Pitlord

At the beginning of your upkeep, sacrifice Kuro, Pitlord unless you pay {B}{B}{B}{B}.
Pay 1 life: Target creature gets -1/-1 until end of turn.

Market Festival

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional two mana in any combination of colors.

Bayou

Bristling Boar

Bristling Boar can't be blocked by more than one creature.

Golden Hind

Cinder Glade

({T}: Add {R} or {G}.)
Cinder Glade enters tapped unless you control two or more basic lands.

Mossfire Egg

{2}, {T}, Sacrifice Mossfire Egg: Add {R}{G}. Draw a card.

Fat Ass

Fat Ass gets +2/+2 and has trample as long as you're eating. (Gum isn't food. We checked.)

Brindle Boar

Feasting Troll King

Vigilance, trample
When Feasting Troll King enters, if you cast it from your hand, create three Food tokens. (They're artifacts with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
Sacrifice three Foods: Return Feasting Troll King from your graveyard to the battlefield. Activate only during your turn.

Temple of the False God

{T}: Add {C}{C}. Activate only if you control five or more lands.

Castle Embereth

Castle Embereth enters tapped unless you control a Mountain.
{T}: Add {R}.
{1}{R}{R}, {T}: Creatures you control get +1/+0 until end of turn.

Festerhide Boar

Trample
Morbid — Festerhide Boar enters with two +1/+1 counters on it if a creature died this turn.

Grim Feast

At the beginning of your upkeep, Grim Feast deals 1 damage to you.
Whenever a creature is put into an opponent's graveyard from the battlefield, you gain life equal to its toughness.

Mossfire Valley

Golgari Signet

Skarrg, the Rage Pits

{T}: Add {C}.
{R}{G}, {T}: Target creature gets +1/+1 and gains trample until end of turn.

Valakut Fireboar

Whenever Valakut Fireboar attacks, switch its power and toughness until end of turn.

Poultrygeist

Flying
Whenever a creature dies, you may roll a six-sided die. If you roll a 1, sacrifice Poultrygeist. Otherwise, put a +1/+1 counter on Poultrygeist.

Outland Boar

Outland Boar can't be blocked by creatures with power 2 or less.

Giant's Skewer

Equipped creature gets +2/+1.
Whenever equipped creature deals combat damage to a creature, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Archetype of Endurance

Creatures you control have hexproof.
Creatures your opponents control lose hexproof and can't have or gain hexproof.

Sol Ring

Fell the Pheasant

Fell the Pheasant deals 5 damage to target creature with flying. Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")

Coalhauler Swine

Whenever Coalhauler Swine is dealt damage, it deals that much damage to each player.

Savage Lands

Savage Lands enters tapped.
{T}: Add {B}, {R}, or {G}.

Ilharg, the Raze-Boar

Trample
Whenever Ilharg, the Raze-Boar attacks, you may put a creature card from your hand onto the battlefield tapped and attacking. Return that creature to your hand at the beginning of the next end step.
When Ilharg, the Raze-Boar dies or is put into exile from the battlefield, you may put it into its owner's library third from the top.

Burning Cinder Fury of Crimson Chaos Fire

Whenever any player taps a permanent, that player chooses one of their opponents. The chosen player gains control of that permanent at the beginning of the next end step.
At the beginning of each player's end step, if that player didn't tap any nonland permanents that turn, Burning Cinder Fury of Crimson Chaos Fire deals 3 damage to that player.

Faceless Butcher

When Faceless Butcher enters, exile another target creature.
When Faceless Butcher leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Fireshrieker

Equipped creature has double strike. (It deals both first-strike and regular combat damage.)
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Obelisk of Jund

Roast

Roast deals 5 damage to target creature without flying.

Witch's Cauldron

{1}{B}, {T}, Sacrifice a creature: You gain 1 life and draw a card.

Swamp

Yurlok of Scorch Thrash

Vigilance
A player losing unspent mana causes that player to lose that much life.
{1}, {T}: Each player adds {B}{R}{G}.

Smoke

Players can't untap more than one creature during their untap steps.

Tinder Wall

Defender (This creature can't attack.)
Sacrifice Tinder Wall: Add {R}{R}.
{R}, Sacrifice Tinder Wall: It deals 2 damage to target creature it's blocking.

Rubblebelt Boar

When Rubblebelt Boar enters, target creature gets +2/+0 until end of turn.

Bonfire of the Damned

Bonfire of the Damned deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.
Miracle {X}{R} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Open Fire

Butcher of Malakir

Flying
Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature of their choice.

Woodland Cemetery

Woodland Cemetery enters tapped unless you control a Swamp or a Forest.
{T}: Add {B} or {G}.

Charcoal Diamond

Charcoal Diamond enters tapped.
{T}: Add {B}.

Insatiable Appetite

You may sacrifice a Food. If you do, target creature gets +5/+5 until end of turn. Otherwise, that creature gets +3/+3 until end of turn.

Free-Range Chicken

{1}{G}: Roll two six-sided dice. If both results are the same, Free-Range Chicken gets +X/+X until end of turn, where X is that result. If the total of those results is equal to any other total you have rolled this turn for this ability, sacrifice it. (For example, if you roll two 3s, it gets +3/+3. If you roll a 4 and a 2 for this ability later that turn, sacrifice it.)