Burrowing

Enchant creature
Enchanted creature has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)

Firebreathing

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

Gray Ogre

Dragon Whelp

Flying
{R}: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step.

Magnetic Mountain

Blue creatures don't untap during their controllers' untap steps.
At the beginning of each player's upkeep, that player may choose any number of tapped blue creatures they control and pay {4} for each creature chosen this way. If the player does, untap those creatures.

Hurloon Minotaur

Hill Giant

Goblins of the Flarg

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)
When you control a Dwarf, sacrifice Goblins of the Flarg.

Shatterstorm

Destroy all artifacts. They can't be regenerated.

Rock Hydra

Rock Hydra enters with X +1/+1 counters on it.
For each 1 damage that would be dealt to Rock Hydra, if it has a +1/+1 counter on it, remove a +1/+1 counter from it and prevent that 1 damage.
{R}: Prevent the next 1 damage that would be dealt to Rock Hydra this turn.
{R}{R}{R}: Put a +1/+1 counter on Rock Hydra. Activate only during your upkeep.

Ornithopter

Goblin Ski Patrol

{1}{R}: Goblin Ski Patrol gets +2/+0 and gains flying. Its controller sacrifices it at the beginning of the next end step. Activate only once and only if you control a snow Mountain.

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

Have

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Flashfires

Black Vise

As Black Vise enters, choose an opponent.
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

Inferno

Inferno deals 6 damage to each creature and each player.

Atog

Sacrifice an artifact: Atog gets +2/+2 until end of turn.

Earth Elemental

Eron the Relentless

Haste
{R}{R}{R}: Regenerate Eron the Relentless.

Mons's Goblin Raiders

Shivan Dragon

Flying (This creature can't be blocked except by creatures with flying or reach.)
{R}: Shivan Dragon gets +1/+0 until end of turn.

Manabarbs

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Keldon Warlord

Keldon Warlord's power and toughness are each equal to the number of non-Wall creatures you control.

Shatter

Chaos Lord

First strike
At the beginning of your upkeep, target opponent gains control of Chaos Lord if the number of permanents is even.
Chaos Lord can attack as though it had haste unless it entered this turn.

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Mountain

Goblin Balloon Brigade

{R}: Goblin Balloon Brigade gains flying until end of turn.

Bird Maiden

Lava Burst

Lava Burst deals X damage to any target. If Lava Burst would deal damage to a creature, that damage can't be prevented or dealt instead to another permanent or player.

Granite Gargoyle

Flying
{R}: Granite Gargoyle gets +0/+1 until end of turn.

Eternal Warrior

Enchant creature
Enchanted creature has vigilance.

Obsianus Golem

The Rack

As The Rack enters, choose an opponent.
At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

Roc of Kher Ridges

Wall of Stone

Dingus Egg

Whenever a land is put into a graveyard from the battlefield, Dingus Egg deals 2 damage to that land's controller.

Earthbind

Enchant creature
When Earthbind enters, if enchanted creature has flying, Earthbind deals 2 damage to that creature and Earthbind gains "Enchanted creature loses flying."

Living Wall

Defender (This creature can't attack.)
{1}: Regenerate Living Wall.

Stone Rain

Chandler

{R}{R}{R}, {T}: Destroy target artifact creature.

Vertigo

Vertigo deals 2 damage to target creature with flying. That creature loses flying until end of turn.

Fissure

Destroy target creature or land. It can't be regenerated.

Gauntlets of Chaos

{5}, Sacrifice Gauntlets of Chaos: Exchange control of target artifact, creature, or land you control and target permanent an opponent controls that shares one of those types with it. If those permanents are exchanged this way, destroy all Auras attached to them.

Orcish Artillery

{T}: Orcish Artillery deals 2 damage to any target and 3 damage to you.

Mana Flare

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Goblin Snowman

Whenever Goblin Snowman blocks, prevent all combat damage that would be dealt to and dealt by it this turn.
{T}: Goblin Snowman deals 1 damage to target creature it's blocking.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Brass Man

Brass Man doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {1}. If you do, untap Brass Man.

Mijae Djinn

Whenever Mijae Djinn attacks, flip a coin. If you lose the flip, remove Mijae Djinn from combat and tap it.

Fire Elemental

Uthden Troll

Ball Lightning

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, sacrifice Ball Lightning.

Fork

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Dwarven Warriors

{T}: Target creature with power 2 or less can't be blocked this turn.

The Brute

Enchant creature
Enchanted creature gets +1/+0.
{R}{R}{R}: Regenerate enchanted creature.

Wall of Fire

Defender (This creature can't attack.)
{R}: Wall of Fire gets +1/+0 until end of turn.