Hulking Goblin

Goblin Warchief

Goblin spells you cast cost {1} less to cast.
Goblins you control have haste.

Raging Goblin

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

Reckless Bushwhacker

Surge {1}{R} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)
Haste
When Reckless Bushwhacker enters, if its surge cost was paid, other creatures you control get +1/+0 and gain haste until end of turn.

Siege-Gang Commander

When Siege-Gang Commander enters, create three 1/1 red Goblin creature tokens.
{1}{R}, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to any target.

Adder-Staff Boggart

When Adder-Staff Boggart enters, clash with an opponent. If you win, put a +1/+1 counter on Adder-Staff Boggart. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Krenko's Command

Create two 1/1 red Goblin creature tokens.

Fire Juggler

Whenever Fire Juggler becomes blocked, clash with an opponent. If you win, Fire Juggler deals 4 damage to each creature blocking it. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Goblin Freerunner

Surge {1}{R} (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)
Menace (This creature can't be blocked except by two or more creatures.)

Volley Veteran

When Volley Veteran enters, it deals damage to target creature an opponent controls equal to the number of Goblins you control.

Goblin Trashmaster

Other Goblins you control get +1/+1.
Sacrifice a Goblin: Destroy target artifact.

Goblin Brawler

First strike
Goblin Brawler can't be equipped.

Hellraiser Goblin

Creatures you control have haste and attack each combat if able.

Weaselback Redcap

{1}{R}: Weaselback Redcap gets +2/+0 until end of turn.

Goblin Arsonist

When Goblin Arsonist dies, you may have it deal 1 damage to any target.

Goblin Instigator

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

Rummaging Goblin

Lavastep Raider

{2}{R}: Lavastep Raider gets +2/+0 until end of turn.

Boggart Brute

Menace (This creature can't be blocked except by two or more creatures.)

Dragon Fodder

Goblin Motivator

{T}: Target creature gains haste until end of turn. (It can attack and {T} this turn.)

Fanatical Firebrand

Haste
{T}, Sacrifice Fanatical Firebrand: It deals 1 damage to any target.

Akki Avalanchers

Sacrifice a land: Akki Avalanchers gets +2/+0 until end of turn. Activate only once each turn.

Skirk Prospector

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 Mudbutton Clanger, you may reveal it. If you do, Mudbutton Clanger gets +1/+1 until end of turn.