Mountain

Winter Sky

Flip a coin. If you win the flip, Winter Sky deals 1 damage to each creature and each player. If you lose the flip, each player draws a card.

Flailing Soldier

{1}: Flailing Soldier gets +1/+1 until end of turn. Any player may activate this ability.
{1}: Flailing Soldier gets -1/-1 until end of turn. Any player may activate this ability.

Horn of Plenty

Whenever a player casts a spell, they may pay {1}. If the player does, they draw a card at the beginning of the next end step.

Barbed Wire

At the beginning of each player's upkeep, Barbed Wire deals 1 damage to that player.
{2}: Prevent the next 1 damage that would be dealt by Barbed Wire this turn.

Shivan Phoenix

Flying
When Shivan Phoenix dies, return Shivan Phoenix to its owner's hand.

Chaotic Goo

Chaotic Goo enters with three +1/+1 counters on it.
At the beginning of your upkeep, you may flip a coin. If you win the flip, put a +1/+1 counter on Chaotic Goo. If you lose the flip, remove a +1/+1 counter from Chaotic Goo.

Mark of Fury

Enchant creature
Enchanted creature has haste.
At the beginning of the end step, return Mark of Fury to its owner's hand.

Volcanic Wind

Volcanic Wind deals X damage divided as you choose among any number of target creatures, where X is the number of creatures on the battlefield as you cast this spell.

Credit Voucher

{2}, {T}, Sacrifice Credit Voucher: Shuffle any number of cards from your hand into your library, then draw that many cards.

Warpath

Warpath deals 3 damage to each blocking creature and each blocked creature.

About Face

Switch target creature's power and toughness until end of turn.

Goblin Festival

{2}: Goblin Festival deals 1 damage to any target. Flip a coin. If you lose the flip, choose one of your opponents. That player gains control of Goblin Festival.

Sluggishness

Enchant creature
Enchanted creature can't block.
When Sluggishness is put into a graveyard from the battlefield, return Sluggishness to its owner's hand.

Brawl

Until end of turn, all creatures gain "{T}: This creature deals damage equal to its power to target creature."

Heart of Ramos

{T}: Add {R}.
Sacrifice Heart of Ramos: Add {R}.

Damping Engine

A player who controls more permanents than each other player can't play lands or cast artifact, creature, or enchantment spells. That player may sacrifice a permanent for that player to ignore this effect until end of turn.

Monkey Cage

When a creature enters, sacrifice Monkey Cage and create X 2/2 green Monkey creature tokens, where X is that creature's mana value.

Rivalry

At the beginning of each player's upkeep, if that player controls more lands than each other player, Rivalry deals 2 damage to them.

Flailing Ogre

{1}: Flailing Ogre gets +1/+1 until end of turn. Any player may activate this ability.
{1}: Flailing Ogre gets -1/-1 until end of turn. Any player may activate this ability.

Goblin Game

Each player hides at least one item, then all players reveal them simultaneously. Each player loses life equal to the number of items they revealed. The player who revealed the fewest items then loses half their life, rounded up. If two or more players are tied for fewest, each loses half their life, rounded up.

Elkin Lair

At the beginning of each player's upkeep, that player exiles a card at random from their hand. The player may play that card this turn. At the beginning of the next end step, if the player hasn't played the card, they put it into their graveyard.

Kaboom!

Choose any number of target players or planeswalkers. For each of them, reveal cards from the top of your library until you reveal a nonland card, Kaboom! deals damage equal to that card's mana value to that player or planeswalker, then you put the revealed cards on the bottom of your library in any order.

War Cadence

{X}{R}: This turn, creatures can't block unless their controller pays {X} for each blocking creature they control.

Rack and Ruin

Magistrate's Veto

White creatures and blue creatures can't block.

General's Regalia

{3}: The next time a source of your choice would deal damage to you this turn, that damage is dealt to target creature you control instead.

Brass Secretary

{2}, Sacrifice Brass Secretary: Draw a card.

Rishadan Pawnshop

{2}, {T}: Shuffle target nontoken permanent you control into its owner's library.

Kyren Sniper

At the beginning of your upkeep, you may have Kyren Sniper deal 1 damage to target player or planeswalker.

Crag Saurian

Whenever a source deals damage to Crag Saurian, that source's controller gains control of Crag Saurian.

Incendiary

Enchant creature
At the beginning of your upkeep, you may put a fuse counter on Incendiary.
When enchanted creature dies, Incendiary deals X damage to any target, where X is the number of fuse counters on Incendiary.

Sandstone Needle

Sandstone Needle enters tapped with two depletion counters on it.
{T}, Remove a depletion counter from Sandstone Needle: Add {R}{R}. If there are no depletion counters on Sandstone Needle, sacrifice it.

Squee, Goblin Nabob

At the beginning of your upkeep, you may return Squee, Goblin Nabob from your graveyard to your hand.

Goblin Artisans

{T}: Flip a coin. If you win the flip, draw a card. If you lose the flip, counter target artifact spell you control that isn't the target of an ability from another creature named Goblin Artisans.

Crooked Scales

{4}, {T}: Flip a coin. If you win the flip, destroy target creature an opponent controls. If you lose the flip, destroy target creature you control unless you pay {3} and repeat this process.

Jester's Mask

Jester's Mask enters tapped.
{1}, {T}, Sacrifice Jester's Mask: Target opponent puts the cards from their hand on top of their library. Search that player's library for that many cards. That player puts those cards into their hand, then shuffles.

Uphill Battle

Creatures played by your opponents enter tapped.

Aether Sting

Whenever an opponent casts a creature spell, Aether Sting deals 1 damage to that player.

Blood Oath

Choose a card type. Target opponent reveals their hand. Blood Oath deals 3 damage to that player for each card of the chosen type revealed this way. (Artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery are card types.)

Granite Grip

Enchant creature
Enchanted creature gets +1/+0 for each Mountain you control.

Flailing Manticore

Flying, first strike
{1}: Flailing Manticore gets +1/+1 until end of turn. Any player may activate this ability.
{1}: Flailing Manticore gets -1/-1 until end of turn. Any player may activate this ability.

Thran Lens

Flaming Sword

Flash
Enchant creature
Enchanted creature gets +1/+0 and has first strike.

Scent of Cinder

Reveal any number of red cards in your hand. Scent of Cinder deals X damage to any target, where X is the number of cards revealed this way.

Robber Fly

Flying
Whenever Robber Fly becomes blocked, defending player discards all the cards in their hand, then draws that many cards.

Viashino Heretic

{1}{R}, {T}: Destroy target artifact. Viashino Heretic deals damage to that artifact's controller equal to the artifact's mana value.