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.)

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.

Mardu Scout

Dash {1}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Goblin Arsonist

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

Bloodcrazed Goblin

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

Goblin

Krenko's Command

Create two 1/1 red Goblin creature tokens.

Goblin Cohort

This creature can't attack unless you've cast a creature spell this turn.

Blazing Volley

Blazing Volley deals 1 damage to each creature your opponents control.

Goblin Tunneler

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

Intimidator Initiate

Whenever a player casts a red spell, you may pay {1}. If you do, target creature can't block this turn.

Hordeling Outburst

Create three 1/1 red Goblin creature tokens.

Mountain

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.

Beetleback Chief

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

Blisterstick Shaman

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

Skirk Prospector

Goblin Heelcutter

Whenever this creature attacks, target creature can't block this turn.
Dash {2}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)