Goblin Arsonist

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

Mountain

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

Thriving Bluff enters tapped. As it enters, choose a color other than red.
{T}: Add {R} or one mana of the chosen color.

Draw four cards, then discard three cards at random.

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

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

Outnumber deals damage to target creature equal to the number of creatures you control.

{1}, Sacrifice an artifact or creature: Makeshift Munitions deals 1 damage to any target.

{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

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

Create four 1/1 red Goblin creature tokens.

When Goblin Commando enters, it deals 2 damage to target creature.

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