Goblin Smuggler

Haste (This creature can attack and {T} as soon as it comes under your control.)
{T}: Another target creature with power 2 or less can't be blocked this turn.

Mogg Fanatic

Sacrifice Mogg Fanatic: It deals 1 damage to any target.

Goblin Shortcutter

When Goblin Shortcutter enters, target creature can't block this turn.

Tarfire

Reckless One

Haste
Reckless One's power and toughness are each equal to the number of Goblins on the battlefield.

Warren Instigator

Double strike
Whenever Warren Instigator deals damage to an opponent, you may put a Goblin creature card from your hand onto the battlefield.

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.)

Bloodmark Mentor

Red creatures you control have first strike.

Raging Redcap

Double strike (This creature deals both first-strike and regular combat damage.)

Goblin Arsonist

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

Raging Goblin

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