Have

Goblin War Strike

Goblin War Strike deals damage to target player or planeswalker equal to the number of Goblins you control.

Goblin Fireslinger

{T}: This creature deals 1 damage to target player or planeswalker.

Bravado

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

Goblin Matron

When this creature enters, you may search your library for a Goblin card, reveal that card, put it into your hand, then shuffle.

Redcap Raiders

Whenever this creature attacks, you may tap an untapped non-Human creature you control. If you do, this creature gets +1/+1 and gains trample until end of turn.

Burn Bright

Creatures you control get +2/+0 until end of turn.

Onslaught

Whenever you cast a creature spell, tap target creature.

Goblin Battle Jester

Whenever you cast a red spell, target creature can't block this turn.

Goblin Bushwhacker

Kicker {R} (You may pay an additional {R} as you cast this spell.)
When this creature enters, if it was kicked, creatures you control get +1/+0 and gain haste until end of turn.

Spikeshot Goblin

{R}, {T}: This creature deals damage equal to its power to any target.

Path of Anger's Flame

Impulsive Pilferer

When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Encore {3}{R} ({3}{R}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Hobgoblin Captain

Pack tactics — Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, this creature gains first strike until end of turn.

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.)

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.)

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.

Foundry Street Denizen

Whenever another red creature you control enters, this creature gets +1/+0 until end of turn.

Brightstone Ritual

Add {R} for each Goblin on the battlefield.

Guttersnipe

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.

Teeterpeak Ambusher

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

Mudbutton Clanger

Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with this creature, you may reveal it. If you do, this creature gets +1/+1 until end of turn.

Goblin Instigator

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

Mogg War Marshal

Echo {1}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters or dies, create a 1/1 red Goblin creature token.

Mob Justice

Mob Justice deals damage to target player or planeswalker equal to the number of creatures you control.

Orcish Oriflamme

Attacking creatures you control get +1/+0.

Goblin Racketeer

Whenever this creature attacks, you may goad target creature defending player controls. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Rummaging Goblin

Path of Ancestry

This land enters tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Goblin Wizardry

Create two 1/1 red Goblin Wizard creature tokens with prowess. (Whenever you cast a noncreature spell, they get +1/+1 until end of turn.)

Stadium Vendors

When this creature enters, choose a player. That player adds two mana of any one color they choose.

Battle Cry Goblin

{1}{R}: Goblins you control get +1/+0 and gain haste until end of turn.
Pack tactics — Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, create a 1/1 red Goblin creature token that's tapped and attacking.

Swarming Goblins

When this creature enters, roll a d20.
1—9 | Create a 1/1 red Goblin creature token.
10—19 | Create two of those tokens.
20 | Create three of those tokens.

Mogg Raider

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

Don't Have

Trumpet Blast

Attacking creatures get +2/+0 until end of turn.

Goblin Sledder

Skirk Prospector

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.)

Goblin Grenade

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

Caterwauling Boggart

Goblins you control and Elementals you control have menace. (They can't be blocked except by two or more creatures.)

Krenko's Command

Create two 1/1 red Goblin creature tokens.

Goblin Caves

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

Mogg Flunkies

This creature can't attack or block alone.

Goblin Lookout

{T}, Sacrifice a Goblin: Goblin creatures get +2/+0 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.)

Mountain

Mogg Fanatic

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

Banners Raised

Creatures you control get +1/+0 until end of turn.

Impact Tremors

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

Fling

As an additional cost to cast this spell, sacrifice a creature.
Fling deals damage equal to the sacrificed creature's power to any target.

Grenzo's Cutthroat

First strike
Dethrone (Whenever this creature attacks the player with the most life or tied for most life, put a +1/+1 counter on it.)

Goblin War Drums

Creatures you control have menace. (They can't be blocked except by two or more creatures.)

Goblin Picker

Opal Palace

{T}: Add {C}.
{1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

Skirk Shaman

This creature can't be blocked except by artifact creatures and/or red creatures.

Goblin Tinkerer

{R}, {T}: Destroy target artifact. That artifact deals damage equal to its mana value to this creature.

Bonder's Ornament

{T}: Add one mana of any color.
{4}, {T}: Each player who controls a permanent named Bonder's Ornament draws a card.

Redcap Thief

When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Raid Bombardment

Whenever a creature you control with power 2 or less attacks, this enchantment deals 1 damage to the player or planeswalker that creature is attacking.

Dragon Fodder

Dark-Dweller Oracle

{1}, Sacrifice a creature: Exile the top card of your library. You may play that card this turn. (You still pay its costs. You can play a land this way only if you have an available land play remaining.)

Goblin Researcher

When this creature enters, exile the top card of your library. During any turn you attacked with this creature, you may play that card.

Tarfire

Goblin Arsonist

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

Forgotten Cave

This land enters tapped.
{T}: Add {R}.
Cycling {R} ({R}, Discard this card: Draw a card.)

Raging Goblin

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

Goblin Gathering

Create a number of 1/1 red Goblin creature tokens equal to two plus the number of cards named Goblin Gathering in your graveyard.