Mountain

Whispersilk Cloak

Equipped creature can't be blocked and has shroud. (It can't be the target of spells or abilities.)
Equip {2}

Bravado

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

Pack Attack

Attacking creatures get +X/+0 until end of turn, where X is the number of players being attacked.
Draw a card.

Sandstone Warrior

First strike (This creature deals combat damage before creatures without first strike.)
{R}: This creature gets +1/+0 until end of turn.

Desperate Ritual

Add {R}{R}{R}.
Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Ashmouth Hound

Whenever this creature blocks or becomes blocked by a creature, this creature deals 1 damage to that creature.

Fearless Pup

First strike
Boast — {2}{R}: This creature gets +2/+0 until end of turn. (Activate only if this creature attacked this turn and only once each turn.)

Raging Goblin

Haste (This creature can attack and {T} as soon as it comes under your control.)

Battle Hymn

Cartouche of Zeal

Enchant creature you control
When this Aura enters, target creature can't block this turn.
Enchanted creature gets +1/+1 and has haste. (It can attack and {T} no matter when it came under your control.)

Goblin Shrine

Enchant land
As long as enchanted land is a basic Mountain, Goblin creatures get +1/+0.
When this Aura leaves the battlefield, it deals 1 damage to each Goblin creature.

Downhill Charge

You may sacrifice a Mountain rather than pay this spell's mana cost.
Target creature gets +X/+0 until end of turn, where X is the number of Mountains you control.

Orcish Oriflamme

Attacking creatures you control get +1/+0.

Goblin Arsonist

When this creature dies, you may have it deal 1 damage to any target.

Electric Revelation

As an additional cost to cast this spell, discard a card.
Draw two cards.
Flashback {3}{R} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)

Fencer's Magemark

Enchant creature
Creatures you control that are enchanted get +1/+1 and have first strike.

Cave Sense

Enchant creature
Enchanted creature gets +1/+1 and has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)

Goblin Caves

Enchant land
As long as enchanted land is a basic Mountain, Goblin creatures get +0/+2.

Akroan Sergeant

First strike (This creature deals combat damage before creatures without first strike.)
Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)

Sawblade Scamp

Haste
Whenever you cast a noncreature spell, put an oil counter on this creature.
{T}, Remove an oil counter from this creature: It deals 1 damage to each opponent.

Fire Shrine Keeper

Menace
{7}{R}, {T}, Sacrifice this creature: It deals 3 damage to each of up to two target creatures.

Fanatical Firebrand

Haste (This creature can attack and {T} as soon as it comes under your control.)
{T}, Sacrifice this creature: It deals 1 damage to any target.

Have

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Akki Ronin

Whenever a Samurai or Warrior you control attacks alone, you may discard a card. If you do, draw a card.

Unexpected Windfall

As an additional cost to cast this spell, discard a card.
Draw two cards and create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Bloodcrazed Goblin

This creature can't attack unless an opponent has been dealt damage this turn.

Pyretic Ritual

Grapeshot

Grapeshot deals 1 damage to any target.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Bold Impaler

{2}{R}: This creature gets +2/+0 until end of turn.

Agility

Enchant creature
Enchanted creature gets +1/+1 and has flanking. (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)

Goblin War Party

Choose one —
• Create three 1/1 red Goblin creature tokens.
• Creatures you control get +1/+1 and gain haste until end of turn.
Entwine {2}{R} (Choose both if you pay the entwine cost.)

Skirk Commando

Whenever this creature deals combat damage to a player, you may have it deal 2 damage to target creature that player controls.
Morph {2}{R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Goldhound

First strike
Menace (This creature can't be blocked except by two or more creatures.)
{T}, Sacrifice this creature: Add one mana of any color.

Forge Devil

When this creature enters, it deals 1 damage to target creature and 1 damage to you.

Mightstone

Keldon Halberdier

First strike
Suspend 4—{R} (Rather than cast this card from your hand, you may pay {R} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)

Beetleback Chief

When this creature enters, create two 1/1 red Goblin creature tokens.

Sabertooth Outrider

Trample
Formidable — Whenever this creature attacks, if creatures you control have total power 8 or greater, this creature gains first strike until end of turn.

Claws of Valakut

Enchant creature
Enchanted creature gets +1/+0 for each Mountain you control and has first strike.

Kami's Flare

Kami's Flare deals 3 damage to target creature or planeswalker. Kami's Flare also deals 2 damage to that permanent's controller if you control a modified creature. (Equipment, Auras you control, and counters are modifications.)

Crown of Fury

Enchant creature
Enchanted creature gets +1/+0 and has first strike.
Sacrifice this Aura: Enchanted creature and other creatures that share a creature type with it get +1/+0 and gain first strike until end of turn.

Ambitious Assault

Creatures you control get +2/+0 until end of turn. If you control a modified creature, draw a card. (Equipment, Auras you control, and counters are modifications.)

Big Score

Empty the Warrens

Create two 1/1 red Goblin creature tokens.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Axiom Engraver

This creature enters with two oil counters on it.
{T}, Remove an oil counter from this creature, Discard a card: Draw a card.

Akki Underling

As long as you have seven or more cards in hand, this creature gets +2/+1 and has first strike.

First Day of Class

Whenever a creature you control enters this turn, put a +1/+1 counter on it and it gains haste until end of turn.
Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Dragon Fodder

Create two 1/1 red Goblin creature tokens.

Lavafume Invoker

{8}: Creatures you control get +3/+0 until end of turn.

Hordeling Outburst

Create three 1/1 red Goblin creature tokens.

Thrill of Possibility

As an additional cost to cast this spell, discard a card.
Draw two cards.

Goblin Instigator

When this creature enters, create a 1/1 red Goblin creature token.

Goblin Sledder

Sacrifice a Goblin: Target creature gets +1/+1 until end of turn.

Bloodmark Mentor

Red creatures you control have first strike.

Granite Grip

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

Barbed Batterfist

For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.)
Equipped creature gets +1/-1.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Seething Song

Mogg Fanatic

Sacrifice this creature: It deals 1 damage to any target.

Chimney Rabble

Haste
When this creature enters, create a 1/1 red Phyrexian Goblin creature token.

Aetherflame Wall

Defender
This creature can block creatures with shadow as though they didn't have shadow.
{R}: This creature gets +1/+0 until end of turn.

Akki War Paint

Enchant artifact or creature
As long as enchanted permanent is a creature, it gets +2/+1.

Krenko's Command

Frostling

Sacrifice this creature: It deals 1 damage to target creature.

Battle-Scarred Goblin

Whenever this creature becomes blocked, it deals 1 damage to each creature blocking it.