Mountain

Boggart Brute

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

Goblin Arsonist

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

Makeshift Munitions

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

Outnumber

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

Muxus, Goblin Grandee

When Muxus enters, reveal the top six cards of your library. Put all Goblin creature cards with mana value 5 or less from among them onto the battlefield and the rest on the bottom of your library in a random order.
Whenever Muxus attacks, it gets +1/+1 until end of turn for each other Goblin you control.

Volley Veteran

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

Goblin Instigator

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

Beetleback Chief

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

Shock

Thriving Bluff

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

Goblin Shortcutter

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

Ornery Goblin

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